Purifi input buffer. Consisting of amp module, PSU, Input buffer.

Purifi input buffer I recently picked up the ClassDAudio Mini GaN 5 VTV Amplifier Custom Input Buffer using a range of discrete opamps from New ClassD, Sparkos, Sonic Imagery, and Weiss (optional) Many models can be upgraded to include our custom input buffer at a later date, preserving your investment; Delta EMI/RFI line filter (standard) Multi-channel amplifier designs available Monoblock VTV Amplifier with Purifi 1ET7040SA module and VTV amplifier custom input buffer. - HPA-1 headphone amp . The P501 has been updated with our new “Ultra” input buffer improving performance. High input gain setting The stock Hypex buffer is not appropriate to use in a commercial product as it does not have the requisite filtering to protect from random noises picked up from cellphones, etc. The power supply arguably I don’t count because it’s not in the signal chain. 00-Search for: Search. I would go with the EVAL1 unit. Balanced & Single-ended Input with Gain Selection. I appreciate any advice from you. "The buffer is a single-channel (mono) buffer, with the following features: Differential The Purifi 1ET400A / Hypex NC500 Input Buffer is exactly that: A buffer or gain stage intended for use with the Purifi 1ET400A and Hypex NC500 Class D amplifier modules. The Nord Three MB is our entry level Purifi EIGENTAKT 1ET9040BA mono block amplifier using one power supply. Buffers are electronic circuits with unity gain (which means that voltage level is the same at both the input and the output) that provide electrical impedance transformationfrom one circuit to another, with th However, I am trying to figure out what truly is the difference between their Rev C input buffer that doesn't use "discrete voltage regulators and OP amps" vs their Rev D buffer Many also report improvements in sound quality when the Purifi 1ET400A and Hypex NC500 are provided a differential input. 2 kohm. It is essentially the same as the Purifi evaluation units that have been tested by Purifi / Hypex Input Buffer Universal Buffer Input Selector Selector Switch & Volume Control Differential Volume Control Headamps HP-2 HP-22 Power Supply & Protection 21st Century Maida Regulator The buffer has a high input impedance, thus, does not load the volume pot significantly. The common consensus here for IC opamps is because they generally work better in their correctly applied circuits than boutique discrete circuit ones. The VTV Buffer option: The input buffer for the EVAL1 is Purifi stock one with the 1ET400A. VTV Purifi stereo amp with VTV buffer with Sparkos op amps. Our custom input buffer board by default comes with the very advanced OPA 1656 operational amplifiers. 00-Monoblock VTV Amplifier with Purifi 1ET9040-BA module From $ 1,299. This is how different commercial Hypex and Purifi based amps can sound differently. The Apollon Audio 1ET7040SA M Stereo Amplifier is built around the powerful Purifi 1ET7040SA amplifier module in a very compact and light weight design with amazing clarity and brutally linear sound. See Purifi DATASHEET here. Joined 2017. —Hypex SMPS1200A400 power supply (this is the power supply used by Purifi to demo their modules) —fully balanced design —EMI/RFI filtered AC inlet —MOGAMI input wiring standard —Heavy, custom designed aluminum case with blue LED Purifi 1ET6525SA Power Specs: 230w into 8ohm 480w into 4ohm 510w into 2ohm Custom Input Buffer Board w/: - Neutrik XLR connectors - 5-way gold plated binding posts - OPA1612 OP Amp - TI TPS7A30/49 Voltage Regulators - Low, Med, High Gain settings - Clipping Indication (via Front Power LED) - In this forum and many other threads. 8V. 0002 %) as a result of the Purifi 1ET400A amplifier module combined with our custom input buffer boards. The Sparkos Labs SS78 and SS79 Discrete Voltage Regulators bring ultra low noise and fast transient response to VTV input buffer board. With the balanced audio input, we provide an I purchased the VTV Purifi amp with the default Hypex input buffer board and it sounded ok. With our PURIFI VTV Amplifier Custom Hypex Input Buffer made for the Hypex NC500, NC1200 and NC2K. -Freya+, Eversolo DMP-A6, Bluesound Node 2i, VTV Purifi, Buckeye 3 channel Purifi, Buckeye 2 channel NC252 MP, Emotiva PA-1 monoblocs, Onkyo RZ50, Topping D90SE, Revel F208, Infinity RC263, Kef surrounds, Monoprice M-10 V2, Infinity Sub R-12, LG C3 evo. I have no personal experience with the SHD. 00-New ClassD Ultimate MKII DUAL Discrete OpAmp DIP8 VTV Amplifier $ 71. The Nord Three DM MKII is our upgraded Purifi EIGENTAKT 1ET9040BA Stereo amplifier using 2 x power supply. I know of several people using the Okto dac 8 with a 10V output paired with purifi amps, bypassing the buffer. 00; VTV Amplifier Custom Input Buffer Hypex NC500 NC1200 NC2K Purifi $ 145. ASSEMBLED IN THE USA — 30 Day Trial This is a brand new amplifier featuring: —VTV High Power Vacuum Tube Buffer using 6922 vacuum tube. Maybe at Tube CAD Journal you'll find something appropriate. I see no reason why this buffer would be unsuitable as input buffer for the purifi. From $ 140. Purifi / Hypex Input Buffer Universal Buffer Input Selector Selector Switch & Volume Control Differential Volume Control Headamps Headamps. Reactions: peng, JonfromCB, Rottmannash and 3 The stock Hypex buffer is not appropriate to use in a commercial product as it does not have the requisite filtering to protect from random noises picked up from cellphones, etc. 2021-09-05 2:37 pm #9 2021-09-05 2:37 pm #9 Here you go: This is a review and detailed measurements of the VTV Purifi class-D amplifier with the optional Weiss OP2-BA Op-amp (buffer/input gain stage). Hypex NC500 Buffer Board Also fits Purifi 1ET400A VTV seems to be the only one selling the kit that was shopped to the big manufacturers by Purifi originally, known as the "Eval-1". S NEW Monoblock VTV Amplifier with Purifi 1ET400A module and VTV Custom Input Buffer $ 879. HP-2 HP-22 Power Supply & Protection Power Supply & Protection. But if you would at any time wish Monoblock VTV Amplifier with Purifi 1ET-6525SA module with Input Buffer Options From $ 725. In this Our custom input buffer board by default comes with the very advanced OPA 1656 operational amplifiers. Dual 1ET400A Purifi modules Hypex SMPS1200A400 PSU Neutrik XLR inputs Sommer Cables Germany Custom Buffer OPA1656 DIP8 Second alu plate for heat dissipation Buffer Spec : - THD: 0,00026% @ Vin 2,5 V RMS - GAIN: 14 dB - BANDWIDTH: 2 Hz - 150 kHz - SLEW RATE: 24 V/uS - CMRR: > 100 dB @ 60 Hz - DYNAMIC RANGE: 127 dB - INPUT I don't know about a Purifi input board. The Voltage Regulator PCB contains seven through-hole components and is easy to solder. rich, natural and full sound that delivers warm tube sonics. • Distortion: THD+N 100W – – 0. The Universal Buffer delivers just over +27 dBu (differential) at the onset of clipping. Yes I checked the input buffer just now and there is scope for only one 1612 on each board. Most of the optional input buffer board designs feature onboard regulators, meant to be used with the unregulated supply from the SMPS 1200. USA ASSEMBLED — 30 Day Trial — Prompt Support in the USA Purifi-Audio 1ET400A Datasheet here VTV Purifi Manual here This is a brand new amplifier featuring: The new Purifi 1ET6525SA is finally live for ordering on our website! The 6525 serves as the direct replacement for the 1ET400A. -Topping D70, Monoprice THX 887, Dan Clark Aeon Open, Senn HD 58X, Focal Elex. CapMan Major Contributor. ldarieut. Yes, He has an updated input buffer board designed, that allows swapping input buffers. In addition, it allows for the use of the classic LM7812/LM7912 and their 100 mA equivalents, the LM78L12/LM79L12. —Hypex NCore high-end input cable —Heavy, custom designed aluminum case with blue LED pilot. Neurochrome. 00-1; VTV Stereo Purifi Amp w/Sparkos Labs SS3602 Input Buffer Tekton Lore Reference L&R, Low Profile Center, Qty. 1 is now ready with OPA1656 in DIP8 socket. Too bad for me, if VTV offers the option of using the Purifi input buffer on the regular model, or use high quality standard binding posts on the Eigentakt (Eval1) model then it would have been an easy decision for me. The input cables from the XLR's are short and shielded and there is little chance for catching up interference elsewhere, like from the sloppy wiring. Official US manufacturer of Purifi and So job #1 of the buffer is to source enough current to produce a clean signal at the input of the amplifier module. This buffer works fully in differential mode, so the input has to be balanced with an XLR connector (or TRS). However, it is possible to bypass it using the Bypass jumper. PUR Retail (DKK) PUR Retail (EUR) Sort By: Featured Featured Newest Arrivals Name (A-Z) Price - Low to High Price - High to Low Four Channel VTV Amplifier with Purifi-Audio 1ET400A modules. cab. That part is hopefully pretty obvious. Arthur 4215/E2 input buffer board was designed in-house. It is by far the best case for amplifier I have seen so far. VTV Purifi. low distortion (THD+N – 0. It also is an excellent choice for the Purifi-Audio 1ET400A and connects flawlessly to the module. USA ASSEMBLED — 30 Day Trial — Prompt Support in the USA Purifi-Audio 1ET7040SA Datasheet here VTV Purifi Manual here This is a brand new amplifier featuring: NEW Stereo VTV Amplifier with Purifi-Audio 1ET400A modules. I purchased a pair of their tube input buffers which are their more expensive option. tomchr. Job #2 of the buffer or input stage is to provide gain. This simply elegant product is milled from solid aluminium with a tough anodized treatment. 00- The Sparkos Labs SS78 and SS79 Discrete Voltage Regulators bring ultra low noise and fast transient response to VTV input buffer board. Last edited: 2021-09-05 7:40 am. This innovative technology delivers ultra-linear and extraordinarily robust performance that meets the needs of audio developers and end-users alike. With single-ended input, the maximum clean output is 6 dB lower. ) Gold plated RCA input with selector switch Apollon OFC binding posts (2 pcs. 00-VTV Amplifier Hypex Input Buffer Ribbon cable NC1200 NC2K two 14 pin ends $ 14. Tom Monoblock VTV Amplifier with Purifi 1ET7040SA module and VTV amplifier custom input buffer. From $ 1,643. The Purifi 1ET6525SA is the successor to the highly acclaimed 1ET400A. 00-VTV AMPLIFIER Six Channel Hypex NC502MP+NC252MP+NC122MP NCore Amplifier 2X500W 2X250W 2X125W $ 1,559. 00017 % 20-20kHzHz • Frequency Response: 0 - 50k Hz +0/-3dB • Low Distortion: THD+N 100W - - 0. That same requirement has to be considered with the future input buffers that will be designed for the Purifi modules. Joined 2010. Amp and buffer from Purifi and SMPS from Hypex then chassis - which is really very good- from a Chinese supplier. The ultra-low noise ±12 V output is also perfect for the Purifi 1ET400A / Hypex NC500 Input Buffer and Purifi/Hypex amplifier modules. Such exceptional performance is the product of very high current and voltage output Connect J4 of the SMPS to J2 of the Buffer using a 10-pin ribbon cable. The 1ET400A is the amp module and usually has a custom buffer So, what is the front end and what speakers will you use? Stereo VTV Amplifier with Purifi-Audio 1ET6525SA modules. 46 Volts. Note that the sharp jumps (aside from when the buffer clips) are caused by range switching in the APx525. Tom Christiansen Audio - www. Tom . Features: –Designed by Andrew Sparks of Sparkos Labs A buffer properly designed for general use would have those (the Purifi board, like the NC500 evaluation boards, is properly designed for OEMs including boutique manufacturers to get started). I'm wondering if you would recommend the 10k, 50k or 100k version for your Input Buffer. If you want to use software mode, you can hack it by connecting 31 of the 36-pin connector to ground using the appropriate 1% resistor (see Table 8 of the Purifi 1ET400A data sheet). USA ASSEMBLED — 30 Day Trial — Prompt Support in the USA Purifi-Audio 1ET-6525SA Datasheet here VTV Purifi Manual here This is a brand new amplifier The new Purifi 1ET6525SA is finally live for ordering on our website! The 6525 serves as the direct replacement for the 1ET400A. Gold plated RCA input with selector switch. Such exceptional performance is the product of very high current and voltage output VTV Amplifier Custom Hypex Input Buffer made for the NEW PURIFI 1ET7040SA. ) Gold plated RCA input with selector switch Apollon OFC binding posts (4 pcs. Such exceptional performance is the product of very high current and voltage output SPECIFICATION (Per Channel) • Standard Stereo Case (Optional SE Case) • 2 x Purifi 1ET400A Module • 2x Hypex SMPS1200A400 Power Supply • 2 x Nord REV D Input Buffer Board Choice of Op Amps. Balanced analog input connector (XLR), Speaker connector, Pin header for enabling/disabling operation, connecters for power supply, voltage regulators for OPAMPs, Pre-gain stage w/ bypass option (jumpers), status LED’s, Refer to the 1ET9040BA Data Sheet for all specifications. 2020-12-31 8:38 pm #1 2020-12-31 8:38 pm #1 I am currently in the process of designing buffer board for purifi/nc500 modules. 00-VTV AMPLIFIER SEVEN Channel Hypex Audio NCx500OEM Purifi EVAL2 kit input buffer, FE003, uses a great trick: View attachment 375291 Input impedance remains the same for both balanced and single ended sound sources, Rin = R1 + R2 = 10. com. It can be used as a passive preamp by adding a volume control, such as the Selector Switch & Volume Control. Have you confirmed with them that those input boards do work with the Purifi module? The cost of the "D" board is as much as the amp module! The manual states this is a bypass option, which is confusing again: does it bypass the gain stage or the whole buffer, in which case the input impedance would be quite low The Apollon Audio Purifi 1ET6525SA Lux Monoblock Amplifier utilises the praised Purifi 1ET6525SA amplifier module as its core. $8 - $29. (LED may be dimmed or shut-off by switch) —Silver-coated speaker output wiring with TFE jacket —Custom input buffer options offers substantial improvement over stock Hypex module. 00- Monoblock VTV Amplifier with Purifi 1ET400A module and VTV amplifier custom input buffer. 00-PAIR OPA1612 Opamp in DIP8 adapter for VTV Amplifier Custom Buffer $ 48. 00017 % 20-20kHzHz • Frequency Response: 0 – 50k Hz +0/-3dB Purifi 1ET400A / Hypex NC500 Input Buffer This Purifi/Hypex input buffer provides a fully differential output. Tom The SMPS 1200 offers unregulated ~ -/+ 18 VDC rails (or regulated at -/+ 12 VDC). Apollon OFC Binding Posts (4 pcs. I'd Hypex NC500 Buffer Board Also fits Purifi 1ET400A So it is a “purifi” amp, but only that one component of the signal chain. the Purifi), the Purifi is a significant step up in transparency. rich sound and full sound that delivers warm tube sonics. Thread starter nerddude; Start date 2020-12-31 8:38 pm; Jump to Latest N. Universal Buffer VTV Tube Input Buffer for Purifi VTV Amplifier makes a couple of different input boards that will work with the Hypex NC500 and Purifi class D modules. ) Apollon Control Board for standby control Neutrik silver plated XLR line input socket (2 pcs. 00-Monoblock VTV Amplifier with Purifi 1ET-9040-BA module and Tube Buffer From $ 1,599. Purifi 1ET6525SA Power Specs: 230w into 8ohm 450w into 4ohm 510w into 2ohm Custom Input Buffer Board w/: Purifi 1ET400A Input buffer. An active preamp, or a preamp with gain, can easily be implemented by adding the Universal Buffer. The stock input buffer for the Hypex amplifiers uses the very good 4562 IC. —Hypex SMPS1200A400 power supply (this is the power supply used by Purifi to demo their modules) —fully balanced design —EMI/RFI filtered AC inlet —MOGAMI input wiring standard —25K ohm input impedance The Apollon Audio Purifi 1ET6525SA Stereo Amplifier is built around the amazing Purifi 1ET6525SA amplifier module in a very compact and light weight design with amazing clarity and brutally linear sound. Rated 5. There is also a version of this amp listed I have seen the reviews by Amir of the Purifi 1ET400, NC500, and NC400 and they all measure well (with the Purifi and NC400 being the "better" for SINAD). The graph below shows the THD+N vs output level. Our Purifi and NCoreX amplifiers include a preamp section called buffer with variable gain shown above, it is activated by default. com Like this but with only 2 Purifi modules : Trust the measurements and not the prices. ) Apollon Audio Input Buffer Board (1 pcs. Unique Input Stage. There isn't enough usable advantage for a flow through option at 0dB in the input buffer to justify the extra cost of a 3 way switch. Connect input and output to the Buffer. USA ASSEMBLED — 30 Day Trial — Prompt Support in the USA Purifi-Audio 1ET7040SA Datasheet here VTV Purifi Manual here This is a brand new amplifier featuring: Purifi 1ET6525SA Power Specs: 230w into 8ohm 480w into 4ohm 510w into 2ohm Custom Input Buffer Board w/: - Neutrik XLR connectors - 5-way gold plated binding posts - OPA1612 OP Amp - TI TPS7A30/49 Voltage Regulators - Low, Med, High Gain settings - Clipping Indication (via Front Power LED) - Monoblock VTV Amplifier with Purifi 1ET-6525SA module and VTV amplifier custom input buffer. Note that the Purifi evaluation input board has the control logic that one needs to get the modules working. 2020-10-27 1:01 pm #707 2020-10-27 1:01 pm #707 emailtim said: How would you characterize the deltas between the 2 ? SPACIOUS, AIRY SOUND, ABUNDANT IN VIVID DETAIL WITH OUR CUSTOM INPUT BUFFER BOARD. The idea of this group buy is to propose a full pack @fair price for a brand new Purifi Buffer : SPEC : - THD: 0,00026% @ Vin 2,5 V RMS - GAIN: 14 dB - BANDWIDTH: 2 Hz - 150 kHz - SLEW RATE: 24 V/uS - CMRR: > 100 dB @ 60 Hz - DYNAMIC RANGE: 127 dB - INPUT IMPEDANCE: 47 Kohm My Apollon Purifi 1ET400A amp arrived a few weeks ago. • Distortion: THD+N 100W - - 0. VTV Amplifier Custom Input Buffer Hypex NC500 NC1200 NC2K Purifi | VTV Amplifier . Selected options for the modular plug-in discrete opamps from Sparkos, Sonic Imagery and Weiss. No idea what the module costs but by the time someone else has put the standard module, presumably unmodified and unmodifiable, in a shiny box with a Hypex supply, because nothing else approved, regulatory, is available with a boutique input buffer for good measure then you're at £1,000 per channel or I am running the Eval board on my Purifi amp, and it certainly does not sound bad, and I do not prefer the sound of my NC-400 amp to the Purifi. It's about the only one of these Purifi jobs that is mildly appealing IMO. This buffer is based on the double Nutube triode from the Japanese manufacturer Korg. After that two mu-followers a channel do the amplification and can driver the 2k2 load of the 1et400a input. —9040 module uses the latest Purifi Gen 2 loop technology delivering substantially lower noise than previous Purifi models producing the most natural and realistic sound in Class D today. The VTV Amplifier custom input buffer board’s modular design allows virtually any DIP8 dual discrete or API PRO form factor discrete opamp of your choice to serve as input buffer. How would the stock Purifi EVAL1 buffer compare to the stock Hypex buffer - have there been reports of a harsh top end on the EVAL1 or has anyone compared the Hypex & Purifi boards directly to compare? Edit: could it potentially have something to do with that lack of input filtering as discussed on the previous page. Joined Mar 18, 2022 Messages 1,685 Likes 3,061 Location London. Input/buffer board > OP amp > Purifi amp. The Purifi/Hypex modules have 12-13 dB gain, so you need another 13-14 dB of gain "somewhere" to get to the THX standard 26 dB. This is a quick teardown of the unit. Case is thick and solid, while paint job is outstanding. This is the first listing on the VTV Purifi page: Purifi 1ET400A Monoblock. I can help you with those. Selected options for the modular plug-in discrete opamps from Sparkos, Sonic Imagery, Staccato, New Class D and Weiss. If I wanted a Purifi power amp, I'd buy that one. 00-VTV AMPLIFIER MONOBLOCK Purifi 1ET-7040SA Amplifier with VTV Vacuum Tube Buffer From $ 2,539. The Nord Three DM is our entry level Purifi EIGENTAKT 1ET9040BA dual mono Stereo amplifier using 2 x power supply. Click on this image for larger size: Take care of the obvious, the two larger modules are Hypex SMP1200 The Buffer involves 3 Genuine OP Amps Muse 02 + 03 (one single and two dual, I will give a test with some OPA1656 that I have in stock) The Buffer globally improve the headroom. Provides Purifi amplification where it is needed most: L-C-R See Purifi-Audio DATASHEET here. - Gold Lion 6922 tube buffer and Weiss OP2-BP input board powered by Hypex SMPS - ⁠Decent chassis design, no internal shielding Option 3: VTV Monoblock Amplifier with Purifi 1ET-9040-BA module. The Nord Three ST is our entry level Purifi EIGENTAKT 1ET400A Stereo amplifier using one power supply. In stock! Five Channel VTV Amplifier with Purifi-Audio 1ET400A modules. Not cheap, but very well executed. It does not go down to half in case of single ended sound source. Can't The Input Selector is a relay-based input selector which supports the selection of one of six stereo inputs. ) Apollon Control Board for standby control Neutrik silver plated XLR line input socket (1 pcs. It is on kind loan from a member and costs US $2,090. I was thinking about the ALPS RK27 Stereo Motorized Potentiometer Smooth Cylindrical Shaft XXX kOhm. DIY input buffer for nc500/purifi. Current price $8 | / Voltage Regulator for Purifi 1ET400A / Hypex NC500 Input Buffer Neurochrome. Custom Input Buffer Board w/: - Neutrik XLR connectors - Low, Med, High Gain settings (if using our Buckeye buffer stage w/OPA1612 OP Amp)* Another added bonus is this new SMPS will also be used to eventually offer a 2ch Purifi 1ET7040SA model, capable of full power just like the monoblock version. Jay (verified owner) Purifi 1ET7040SA amplifier (2 pcs. Thread starter nisehelle; Start date 2023-08-16 7:24 pm; Jump to Latest N. But if you would at any time wish to change the sound characteristics of the Apollon Purifi 1ET7040SA dual mono amplifier you can do so with simply exchanging the op amp (so called Op amp rolling). VTV seems to be the only one selling the kit that was shopped Footnote 1: "After the second year, minor parts (such as wiring and connectors) are still replaced for free. The VTV Tube Buffer for the Purifi 1ET-400A has been redesigned and upgraded to power the new Purifi High Power module. This Purifi/Hypex input buffer provides a fully differential output. Furthermore, it offers access to more advanced options, such Best Buffet Restaurants in Walsall, West Midlands: Find Tripadvisor traveler reviews of THE BEST Walsall Buffet Restaurants and search by price, location, and more. The Purifi Eigentakt Stereo amp with OPA1612 differential input buffer has been measured and it's the standard that I really like. I purchased mine with the Hypex buffer but subsequently upgraded to the VTV buffer with a Sparkos SS3602 buffer; (more about that later). Strikes me that in DIY terms Purifi is a bit of a dead end. Considering the purifi offers a differential input requiring 10vrms at 4K ohms for full output, it would be good to consider that: - the relevant datasheet is mostly the lme49724; - no lm4562 in Tom's buffer is required to swing 20Vp-p, far from it. Our new “Ultra” input buffer has been designed to extract the maximum performance from the Purifi 1ET9040 module, minimise noise and eliminate ground loops. 81 Watts. VTV Amplifier Custom Input Buffer Hypex Purifi NC500 NC1200 NC2K USA SPARKOS | eBay . Save Share I’ve had a lot of experience with digital amplifiers for almost 2 decades. VTV Purifi 1ET-6525SA; VTV Purifi High Power Modules: 1ET7040SA and 1ET9040BA; VTV PASCAL; VTV Multi Channel Amplifiers. Using Nord REV D input buffers with Sparkos discrete Voltage regulators and choice of discrete Sparkos 2590 What I might suggest as an alternative is the Purifi Eigentakt 1ET400A, elevated with VTV's optional and excellent Sparkos Labs SS2590 discrete input buffer. Many can provide slam, dynamics, deep bass and clear treble. 00- The amplifier contains one Purifi 1ET7040SA module coupled with our Apollon Audio PET custom input buffer board with the acclaimed Weiss OP2-BP Op Amps onboard. It is an excellent upgrade on the Purifi EVAL1 and features extremely low distortion. My Purifi/Hypex Buffer offers the options of using an external voltage regulator for the opamps, which many fancy. I opted for a Hypex SMPS 1200A400 main power supply, and a more complex regulated power supply than the Hypex I've decided to give the Purifi a chance and I will be ordering two VTV units. VTV Purifi Manual here ASSEMBLED IN THE USA — 30 Day Trial This is a brand new amplifier featuring: —Multiple Input Buffer Options —Hypex 3000W power supply provides exceptional headroom —fully balanced design —EMI/RFI filtered AC inlet I'm building a class-D amp using the Purifi 1ET400A module and would like to add a little tube magic. 00- This weekend build a new tube buffer for driving the 1et400a amp. You knocked on the right door but asked for help on the "wrong product", as TomChr has designed his own Purifi / Hypex input buffer Purifi 1ET400A / Hypex NC500 Input Buffer – Neurochrome You can find the forum thread here: Purifi 1ET400A / Hypex NC500 Input Buffer . Our custom input buffer board comes with a DIP8 socket that enables you to attach a wide range of DIP8 compatible operational amplifiers on These different buffers/op amps have different sonic signatures and thus the amps can be "tuned" by the buyer's choice of input buffer/op amps to produce a sound signature to suit the buyer: some are warm, some more neutral, etc. Will definitely let you know the results. 4 Shoebox Surrounds Hsu Research VTF-2 MK5 Subwoofer. I do own a VTV Purify with their buffer and the Sparkos -- my advice: avoid the Hypex Eval buffer, the Sparkos sounds much better. When I look online for buffers, it seems that there are only The Apollon Audio Purifi 1ET6525SA Lux Monoblock Amplifier utilises the praised Purifi 1ET6525SA amplifier module as its core. ) Neotech UP-OCC 12AWG Solid Copper 12V Trigger for wakeup from standby The input buffer for the EVAL1 is Purifi stock one with the 1ET400A. Broskie sells PCB's. NOTE:WHEN YOU ORDER THIS AMPLIFIER IT WILL COME WITH THE NEW 1ET6525SA MODULES INSTEAD OF THE OLD 1ET400A MODULES The PURIFI 1ET400A based dual mono amplifier has the option to use a custom input buffer board with class A op amps that makes the PURIFI 1ET400A work to its fullest potential and create a mind-blowing musical experience. Purifi / Hypex Input Buffer Universal Buffer Input Selector Selector Switch & Volume Control Differential Volume Control Headamps HP-2 HP-22 Power Supply & Protection So, if you input 4 Volts, you will get out 17. Joined 2021. Has anyone compared the Purifi and Pascal class D modules (preferably with the Purifi stock input buffer)? I'm looking to buy one or the other from VTV. Purifi / Hypex Input Buffer Universal Buffer Input Selector Selector Switch & Volume Control Differential Volume Control Headamps HP-2 HP-22 Power Supply & Protection 21st Century Maida Regulator Universal Filament The boutique buffers that are implemented with the Hypex modules are very expensive, disproportionately expensive. (LED may be dimmed or shut-off by switch) —Silver-coated speaker output wiring with TFE jacket —Custom input buffer options offers Hi Tom, I would like to add a volume control to my Input Buffer + Purifi 1ET400A feeding it with an unbalanced (RCA) signal. Eight Channel; Seven Channel; VTV AMPLIFIER NCx500 Hypex NCore Dual Mono Stereo with Input Buffer Options (Two Power Supplies) From $ 1,499. Nobody recommends IC Opamps because "they opamp roll off". uk breakdown; european breakdown; motorbike breakdown; report a breakdown; insurance; car insurance; home insurance The VTV Purifi amp comes with the VTV Hypex buffer, not the Purifi buffer. Our custom input buffer board comes with a DIP8 socket that enables you to attach a wide range of DIP8 compatible operational amplifiers on the market. . View the menu, check prices, find on the map, see photos and ratings. 00-New ClassD Ultimate MKII DUAL Discrete OpAmp DIP8 VTV Amplifier SPACIOUS, AIRY SOUND, ABUNDANT IN VIVID DETAIL WITH OUR CUSTOM INPUT BUFFER BOARD The Apollon Audio Purifi Multichannel Amplifier is exceptionally fast, uncommonly clean, and exceedingly musical with articulated, deep, tight, and powerful bass. I should probably build some up so I can offer the whole shebang as a kit. I'm not sure about the best choice for the input buffer. Joined 2023. That turned out pretty nice. These use a 6922 triode tube differential input driving a pair of Weiss discrete op amps. 00-VTV AMPLIFIER Five Channel Purifi Audio 1ET-6525SA Amplifier From $ 2,094. The more expensive input buffer options do not increase measurements of the Purifi amp so I'm not willing to pay for them. Internet searches have come up blank. With our 3 Channel Purifi 1ET400A Amplifier you have the option to choose our custom Apollon input buffer board built around Sonic 2x Purifi 1ET400A / Hypex NC500 Input Buffer 1x SMPS Splitter You'll also need two wiring harnesses to connect from the SMPS Splitter to each of the two buffers and a 10-pin ribbon cable that connects the SMPS and Buffers. (NAD, etc), and why I should assume that the third party vendors are doing a better job on their input buffer implementations than the original designers of the Purifi system. not Purifi. Presenting the 1ET9040BA, a cutting-edge 2nd Generation EIGENTAKT amplifier module that redefines audio performance, surpassing all existing technologies. The Apollon Audio Purifi Stereo Amplifier is exceptionally fast, uncommonly clean, and exceedingly musical with articulated, deep, tight, and powerful bass. 00-VTV AMPLIFIER Stereo Purifi Audio 1ET-6525SA Amplifier From $ 1,150. com Reactions: Mike in NC and Matt37. SKR. -Freya+, Eversolo DMP-A6, Bluesound Node 2i, VTV Purifi, Buckeye 3 channel Purifi, Buckeye 2 channel NC252 MP, Emotiva Balanced analog inputs connectors (XLR), banana-plug speaker connectors, toggle switch for enabling/disabling operation, connecters for a (shared) power supply, voltage regulators for OPAMPs, Pre-gain stage w/ bypass option (jumpers), status LED’s, various pin headers for accessing e. ? The Buffer involves 3 Genuine OP Amps Muse 02 + 03 (one single and two dual, I will give a test with some OPA1656 that I have in stock) The Buffer globally improve the headroom. No I2C is needed. I am planning to go this same route using the larger 1ET9040 modules. The prices displayed exclude the EU VAT and will be added at checkout if you are located in the EU. The VTV EVAL1? If used with the EVAL1 input buffer stage enabled, total gain is 27dB and New Purifi Buffer in V2. And the competent The Neurochrome Purifi/Hypex Buffer operates the amp module in hardware mode. Using Nord 9040 REV D input buffers with Sparkos discrete Voltage regulators and choice of discrete Sparkos 2590 or Sonic Imagery 990 Op Amps. This one is special in that it sounds almost completely effortless, super transparent, with a wide and deep soundstage and the widest bandwidth I’ve heard. . 2 channels 425 W HiFi power amplifier, Purifi Eigentakt technology. The circuit is valid for Class D power modules, models NC500 Technology: NCORE (Option EIGENTAKT Purifi) Buffer: Korg Nutube valve (Triode) Input impedance: 104 kΩ Load impedance: min. Save Share Has anyone compared the Purifi and Pascal class D modules (preferably with the Purifi stock input buffer)? I'm looking to buy one or the other from VTV. tomchr. 00- SPECIFICATION (Per Channel) • Standard Stereo Case (Optional SE Case) • 2 x Purifi 1ET400A Module • 2x Hypex SMPS1200A400 Power Supply • 2 x Nord REV D Input Buffer Board Choice of Op Amps. 00017 % 20-20kHzHz • SNR 131dB • High That's the Apollon Purifi mini someone mentioned. S. Or the user confusion it may bring. According to VTV, Purifi increased the pin count to 54 on the 7040. This combination produces a great output power and, harmonically, is These are mono blocks based on Purifi 1ET400A modules and the Neurochrome buffer made by Tom. By the way, the standard input buffer sold by VTV for use in their amps is from Hypex. Just toss me an email. but my advice to anyone looking to go the Purifi route is just buy the one from VTV that uses Purifi's input module and get the best performer for the lowest cost. I am strongly strongly now leaning toward the Nord NC500 3ch model that uses the stock Hypex Input buffer boards. 46 Volts over 6 ohms is only 50. 00; VTV AMPLIFIER Monoblock Hypex NC1200 NCore Amplifier 1200W with VTV Buffer Input $ 1,329. The circuit is valid for Class D power modules, models NC500 from manuf This configuration perfect for home theater where rear channel require efficient, yet compact amplification. Development of the V3 version of the buffer for Hypex NC500 and Purifi 1ET400 This Power Supply features ultra-low output noise which makes it an ideal power supply for preamplifiers, headphone amplifiers, and phono stages. Features Purifi’s latest GEN2 technology for the most natural sounding midrange yet. Using simplified Nord 9040 input buffers (no Sparkos onboard regulators use supply from main PSU) with OPA1612 OP Amps. The input connectors are Neutrik high quality silver plated XLR sockets. Also, I say don't go for the NC252MP, (vs. Any reason I might regret this over spending more for the Purifi setup -Freya+, Eversolo DMP-A6, Bluesound Node 2i, VTV Purifi, Buckeye 3 channel Purifi, Buckeye 2 channel NC252 MP, Emotiva PA-1 monoblocs, Onkyo RZ50, Topping D90SE, Revel F208, Infinity RC263, Kef surrounds, Monoprice M-10 V2, Infinity Sub R-12, LG C3 evo. Nice set of adjustable gains, SE and Balanced, dimmable logo and proper rear panel markings. Thanks Warren! Rated 5 out of 5. I bought the March Audio P452 Purifi amp. 00017 % 20-20kHzHz • SNR 131dB • High VTV AMPLIFIER Stereo Purifi Audio 1ET-7040SA (High Power) Amplifier. To obtain the full rated power (425W@4R/1% THD) of the module without a buffer, you'd need a preamplifier capable of swinging The Nord Three MB is our entry level Purifi EIGENTAKT 1ET9040BA mono block amplifier using one power supply. C. It offers 14db of gain and uses a very high quality IC opamp and delivers the famous Hypex “house sound. Citations needed. Purifi 1ET400A amplifier (1 pcs. It uses the 6N6P tube but also can adapt the ECC99. Purifi has taken the highly regarded 400A and refreshed it to bring even more state-of-the-art performance. VTV Purifi Manual here ASSEMBLED IN THE USA — 30 Day Trial This is a brand new amplifier featuring: —Multiple Input Buffer Options —Hypex 3000W power supply provides exceptional headroom —fully balanced design —EMI/RFI filtered AC inlet The Nord Three 3CH MKII is our upgraded Purifi EIGENTAKT 1ET400A 3 channel amplifier. L. Purifi 1ET6525SA Power Specs: 230w into 8ohm 450w into 4ohm 510w into 2ohm Custom Input Buffer Board w/: The Voltage Regulator allows for the use of the Hypex HPR and HNR voltage regulators with the Input Buffer. for class d guys it does not make sense to use a tube input buffer; 2. On the other hand, a proper 3-wire RCA-XLR adapter cable is to be used. It is a stereo module and uses different op amps and different regulators than the stock generic Hypex boards sold by VTV. PAIR OPA1612 Opamp in DIP8 adapter for VTV Amplifier Custom Buffer $ 48. Enable / disable the buffer. Input buffer with boXem sauce. You have to buy the Purifi input board directly from Purifi. So the input buffer could be separated from the amp module to allow manufacturers to customise the sound of their amps for their customers. Now, 26 dB is a bit of an arbitrary number. —Vacuum tube input buffer using 6922 tube delivers smooth mids and highs along with the sonic ambience of vacuum tube designs. Get improved sound quality with this one-of-a-kind input buffer. Using Nord REV D • 3 x Nord REV D Input Buffer Board Choice of Op Amps. (THD+N – 0. High input gain setting The SMPS 1200 offers unregulated ~ -/+ 18 VDC rails (or regulated at -/+ 12 VDC). The Nord Three MB is our entry level Purifi EIGENTAKT 1ET7040SA Stereo amplifier using one power supply. In stock The Voltage Regulator allows for the use of the Hypex HPR and HNR voltage regulators with the Input VTV Amplifier Custom Input Buffer for Purifi 1ET-7040SA HIGH POWER MODULE From $ 165. Menu. The Nord Three 3CH MKII is our upgraded Purifi EIGENTAKT 1ET400A 3 channel amplifier. 00-VTV AMPLIFIER SEVEN Channel 3+4 Purifi Audio 1ET-6525SA Amplifier Purifi + 2X Hypex NC252MP From $ 2,979. ” The VTV Custom Buffer provides flexibility in opamp selection. In my Purifi build, I use a separate, linear, regulated, power supply at -/+ 18 VDC to feed the input board(s). Member. Joined 2009. Using simplified input buffers (no Sparkos onboard regulators use supply from main PSU) with OPA1612 OP Amps. ) Neotech UP-OCC 12AWG Solid Copper and 12V Trigger for wakeup from standby —Vacuum Tube Buffer using 6922 vacuum tube. Customers notice low level listening ability, far superior 3D Connect J4 of the SMPS to J2 of the Buffer using a 10-pin ribbon cable. Oct 9, 2023 #10 My guess would be the hum/buzz we see is introduced in the buffer PCB. Custom Input Buffer Board w/: - Neutrik XLR connectors - OPA1612 Input Stage - TI TPS7A49/30 Voltage Regulators - Clipping Indication VTV Amplifier Custom Input Buffer Hypex NC500 NC1200 NC2K Purifi. 17. In this forum and many other threads. My speakers are Monitor Audio Silver 100 (Gen 6) which are easy to drive. The PET950 monoblock amplifier is powered with one SMPS Hypex power supplyboasting 1200 Watts of power. Has Amir measured the Purifi with the © Automobile Association Developments Ltd. 2018 . That configuration produces 10W at 6 ohms with 1. Monoblock VTV Amplifier with Purifi 1ET9040BA module and VTV amplifier custom input buffer. Customers notice low level listening ability, far superior 3D soundstage and high frequency details. My favourite set-up with Class D was 10Y pre-amp gain stage in fillament bias feeding Purifi's with the Neurochrome buffer on for higher input impedance and SE to Balanced conversion. 7 volts rms to achieve full power Purifi 1ET400A M Monoblock Amplifier is built around the amazing Purifi 1ET400A amplifier module in a very compact and light weight design. VTV Purifi Manual here ASSEMBLED IN THE USA — 30 Day Trial This is a brand new amplifier featuring: —Multiple Input Buffer Options The P501 is a Purifi 1ET7040SA based mono-block amplifier. Apollon logo looks great while not being too flashy/aggressive in a dark room. Learn more about the Purifi/Hypex Input Buffer here: »Purifi 1ET400A/Hypex NC500 Input Buffer. wav> You're done. 21st Century Maida Regulator Universal Filament Regulator Power-86 The OPA1612 differential input buffer is all you need. It is essentially the same as the Purifi evaluation units that have been tested by —Hypex NCore high-end input cable —Heavy, custom designed aluminum case with blue LED pilot. PURIFI 1ET7040SA BASED MULTICHANNEL AMPLIFIER. output current: 25 A Signal-to-noise ratio: The Nord Three 3CH MKII is our upgraded Purifi EIGENTAKT 1ET400A 3 channel amplifier. USA ASSEMBLED — 30 Day Trial — Prompt Support in the USA . It was a little bright for my taste. SPACIOUS, AIRY SOUND, ABUNDANT IN VIVID DETAIL WITH OUR CUSTOM INPUT BUFFER BOARD The Apollon Audio Purifi 1ET400A Multichannel Amplifier is exceptionally fast, uncommonly clean, and exceedingly musical with articulated, deep, tight, and powerful bass. How do I choose a buffer? The default buffer for the NCore and Purifi is the Hypex factory buffer. Then I heard about the Neurochrome input buffer We have developed an input buffer for the Hypex NC500 and 1ET400 Purifi-Audio power modules. When I turn on the music it powers up in about 2-3 seconds and goes off when I turn the preamp off in about a minute or so. The 1ET400A is the amp module and usually has a custom buffer So, what is the front end and what speakers will you use? VTV Purifi Amplifier with SIL Buffer Measurements As usual we start with our 5 watt dashboard into 4 ohm load: Gosh, that ugliness in the FFT spectrum really makes you lose your appetite coming from squeaky clean reference design: The noise is triggered by the power supply. The chassis I don’t count sorry if this seems obtuse, I’m only just learning about this Aside from ease of wiring, is an input buffer required to build a decent sounding 1et400 mono amplifier? It seems possible to equip all the protective functionalities in combination with Hypex SMPS600/1200 Our custom input buffer board by default comes with the very advanced OPA1656 operational amplifiers. Original price $8 - Original price $29 Original price. But if you would at any time wish to change Monoblock VTV Amplifier with Purifi 1ET-6525SA module with Input Buffer Options From $ 725. This buffer has the particularity that carries a double Korg Nutube triode. Using Nord REV D input buffers with Sparkos discrete Voltage regulators and choice of discrete Sparkos 2590 Purifi 1ET9040BA Eigentakt amplifier (2 pcs. Using simplified 9040 input buffers (no Sparkos onboard regulators use supply from main PSU) with OPA1612 OP Amps All buffers have 4 levels of On-Board Switchable Gain. That would require an input of 12. The buffer has been designed to extract the maximum performance from the Purifi 1ET7040SA module These are available with factory buffers (most economical) or for the highest sonic quality, using the VTV Custom Input Buffer. But if you would at any time wish to change the sound characteristics of the Apollon NCx500 amplifier you can do so with simply exchanging the op amp (so called Op amp rolling). My choices are Hypex Nilai DIY Kit, NCX500 or Purifi Eigentakt. nerddude. I need to create a input buffer with a little bit of gain. I am using a HV smps as power supply. Last edited: 2020-10-26 5:57 pm. 1. Dine & Wine Restaurant, Walsall: See 84 unbiased reviews of Dine & Wine Restaurant, rated 3. 00- VTV AMPLIFIER BTL wired Monoblock Purifi Audio 1ET-7040SA (High Power) Amplifier From $ 1,643. Connect the amp module to the 36-pin connector on the Buffer. The requirements are differential input and output with about 10db of gain. 1 Ω (1-8 Ω) Output power: 300W @ 1,5% THD, 4 Ω // 150W @ 1,5% THD, 4 Ω // 5W @ 0,15% THD, 8 Ω Distortion: 0,15%, 20 – 20 kHz, 4 Ω, P<100 W Frecuency response: 1Hz – 50 kHz (+0/-3 dB) Max. Asking 200USD + The chassis has heat sinks along the side and I put the 1ET400A and the Neurochrome Purifi/Hypex Input Buffer on a small aluminum plate that I then mounted to the heat sink. Our custom input buffer board comes with a DIP8 socket that VTV Amplifier Custom Input Buffer for Purifi 1ET-7040SA HIGH POWER MODULE From $ 165. I recently picked up the ClassDAudio Mini GaN 5 The Purifi 1ET400A based amplifier has the option to use a custom input buffer board with class A op amps that makes the Purifi 1ET400A work to its fullest potential and create a mind-blowing musical experience. It has a really nice aluminum case but if I was buying an amp today I might hesitate to pay the $500 premium over VTV. I opted for a Hypex SMPS 1200A400 main power supply, and a more With that caveat, it seems that there are benefits to eliminating the input buffer stage as seen in the Amir's Purifi review or in the low gain mode measurements for the All info on Dine & Wine Buffet Restaurant in Walsall - Call to book a table. Designed and proudly built in Luxembourg. INPUT BUFFER WITH VACUUM VALVE FOR HYPEX NC500 AND PURIFI AUDIO 1ET400 MODULES (V1) For the implementation of this kit in the power modules, minimal technical knowledge in electronics is required. g, I2C and status information. 00; VTV AMPLIFIER Monoblock Hypex NC2000 NCore Amplifier 2000W with VTV Buffer Input VTV AMPLIFIER Three Channel Purifi Audio 1ET-7040SA Amplifier From $ 2,099. I'm currently using the Neurochrome input buffer, but I have a pair of VTV triode buffer boards with Weiss discrete op-amps that I am planning to install next weekend (waiting for a couple of connectors). My question after all this is I have never heard a different amplifier in my system and very much have a fear that that I will not hear a good increase in sound quality (honestly, I am really looking for a bigger more holographic stage) from my RB-1070 which is more than enough These different buffers/op amps have different sonic signatures and thus the amps can be "tuned" by the buyer's choice of input buffer/op amps to produce a sound signature to suit the buyer: some are warm, some more neutral, etc. Featuring Neutrik XLR input connectors, 4 layer circuit board, OPA1612 op amps and very low noise LT3045/94 voltage regulators. Purifi 1ET400A / Hypex NC500 Input Buffer This Purifi/Hypex input buffer provides a fully differential output. He's waiting for delivery on the amps and expects to have final pricing The Nord Three DM is our entry level Purifi EIGENTAKT 1ET9040BA dual mono Stereo amplifier using 2 x power supply. VTV Purifi Eigentakt Stereo Amplifier based on Purifi EVAL-6 I may try the tube input buffer some day if I can afford the upgrade and see if it helps bad recordings out but so far I’m pretty content with what I have. input buffer with vacuum valve for hypex nc500 and purifi audio 1et400 modules (v2) For the implementation of this kit in the power modules, minimal technical knowledge in electronics is required. Consisting of amp modules, PSU's, Input buffers. Purifi 1ET400A Input buffer. Apollon Control Board for standby control. The amplifier has a soft start function and it is turned on with a hidden push button switch on the bottom lid. Only 1 of 3 items in the signal chain is Purifi. When I look online for buffers, it seems that there are only The Purifi/Hypex SMPS Splitter allows you to connect up to three Purifi 1ET400A or Hypex NC500 to one Hypex SMPS1200 or SMPS3k power supply. And the competent The Nord Three MB is our entry level Purifi EIGENTAKT 1ET7040SA Stereo amplifier using one power supply. The amplifier contains one Purifi 1ET9040BA module The Apollon Audio 1ET400A ST Stereo Amplifier is built around the amazing Purifi 1ET400A amplifier module in a very compact and light weight design with amazing clarity and brutally linear sound. Technically there should be no restrictions to use a tube input/buffer; I'm afraid you have to investigate yourself. 2023-08-16 7:24 pm #1 2023-08-16 7:24 pm #1 I'm thinking about building some slim monoblocs with the Purifi 1ET400A. Coupled with the VTV Custom Input Buffer, these amplifier modules will outperform amplifiers and many times the price. The challenge has been to fit in a relatively limited space the buffer circuits for two channels, the gain management switch, the audio sense Too many projects and too little time at the moment, so I'm selling the following: 2x Purifi 1ET400A / Hypex NC500 Input Buffer 2x Voltage Regulator for Purifi 1ET400A / Hypex NC500 Input Buffer unpopulated PCB Everything is new and never used. The Apollon Audio Purifi 1ET6525SA Lux Stereo Amplifier is built around the amazing Purifi 1ET6525SA amplifier module in a very compact and light weight design with amazing clarity and brutally linear sound. The measures have their reason that the prices cannot understand-) V. 0002 %) as a result of the Purifi 1ET6525SA amplifier module combined with our custom input buffer boards. Linear Power supply. 00-VTV AMPLIFIER Three Channel Purifi Audio 1ET-6525SA Amplifier From $ 1,539. • Arthur 4215/E2 input buffer board was designed in-house. 00-VTV AMPLIFIER Stereo Purifi Audio 1ET-7040SA (High Power) Amplifier From $ VTV offers either the Hypex' 'Evaluation' input/output buffer, or its own, (Sparkos-designed), buffer with a range of op amp options. neurochrome. These run in full class A and add Purifi 1ET400A/Hypex NC500 Input Buffer. My preamp is Topping Pre90. It also offers a low output impedance. <tada. Would it be justifiable to get a Purifi kit with this buffer board, or would it be better to just bite the bullet and drop the extra $3-400 on other custom boards? March Audio Master Contributor The NC500 module on its own without an input buffer has a gain of 12. Any input would be appreciated. Whether op-amp is the source of the power supply or combination of both I just reviewed the VTV Purifi amplifier with SIL 994EnH-Ticha input gain/buffer stage. It provides a differential output for the Class D amplifier, even if the input to the buffer is single-ended. Official US manufacturer of Purifi and Description. The EIGENTAKT Class D Amplifier Technology from PURIFI is the result of extensive research and patented IP aimed at addressing persistent challenges in Class D technology. The NCore and Purifi modules use either a factory buffer or VTV Custom Buffer. ) Apollon Audio PET Input Buffer Board with Weiss OP2-BP op amps. This will result in a preamp with six stereo inputs and both Yes-that's the most convenient feature of the new Buckeye Purifi w/ input board. And, thank goodness, properly earthed. For that price they should be required to improve the CMRR without any extra cost. Go with the Purifi default or a different choice? Looking at the options for a Purfi amp (VTV,Nord,Apollon) I see that they all offer their own custom input buffers. Such exceptional performance is the product of very high current and voltage output Option 2: VTV Monoblock Amplifier with Purifi 1ET-9040-BA module and Tube Buffer. 2023-06-27 8:12 am #2 2023-06-27 8:12 am DIY input buffer cost less then €50,- and best option for 1et400a . 5 of 5 on Tripadvisor and ranked #127 of 312 restaurants in Walsall. Major parts (such as amplifier modules, input buffer board, and LED These are mono blocks based on Purifi 1ET400A modules and the Neurochrome buffer made by Tom. The VTV Purifi with Hypex buffer is relatively bargain priced and Voltage Regulator for Purifi 1ET400A / Hypex NC500 Input Buffer. The key features of the Input Buffer are: Sonically This is a buffer that gives us a sound very similar to vacuum valves. The challenge has been to fit in a relatively limited space the buffer circuits for two channels, the gain management switch, the audio sense circuit, the I2C bus communication with the amplifiers and finally the supplies for analog and digital circuits, all this while obtaining the performance at the same level as the There is a near 2:1 price ratio from no-buffer at all to fully blinged out version with eye-watering speaker connection options. Using Nord REV D input buffers with Sparkos discrete Voltage regulators and choice of discrete Sparkos 2590 or Sonic Imagery 990 Op Amps. 00-VTV AMPLIFIER Four Channel Purifi Audio 1ET-6525SA Amplifier From $ 1,829. Consisting of amp module, PSU, Input buffer. NCore is the Hypex flagship line offering the highest level sonic performance. 0002 %) as a result of the Purifi 1ET6525SA amplifier module combined with our custom input buffer boards VTV Amplifier Custom Vacuum Tube Input Buffer Purifi 1ET-400A, NC500OEM From $ 565. The OP Amps U1 is the main one, the Op Amps U2 and U3 help to increase te output current and help to better drive the Purifi modules. 00 out of 5. 00-VTV Amplifier Custom Input Buffer for Purifi 1ET-7040SA HIGH POWER MODULE From $ 165. VTV Purifi Manual here ASSEMBLED IN THE USA — 30 Day Trial This is a brand new amplifier featuring: —Multiple Input Buffer Options The VTV Buffer option offers: —Vacuum Tube Buffer using 6922 vacuum tube. It works out much cheaper option and who knows better also. 4dB. Input boards for the ET400 module will not work with the ET7040 module. Incorporating 2nd Generation EIGENTAKT advancements from its bigger brother (the 1ET9040BA), the new 1ET6525SA has lower output noise, higher SNR, lower distortion, and more power output (up to 510w per channel) compared to the original 1ET400A. I got the stereo Purifi with the Sparkos input buffer. All buffers have 4 levels of On-Board Switchable Gain. I just reviewed The PURIFI 1ET400A based amplifier has the option to use a custom input buffer board with class A op amps that makes the PURIFI 1ET400A work to its fullest potential and create a mind-blowing musical experience. Neutrik silver plated XLR line input socket. and it is not a mono module. See Purifi-Audio DATASHEET here. nisehelle. the tube guys think you're wasting your time using class d amps. ) Pure UP-OCC 12AWG Solid Copper Speaker output wire They both use the Purifi modules but NAD has a much better power core, input buffer, and output stage. Consisting of amp modules, PSU’s, Input buffers. 99-VTV Amplifier Custom Vacuum Tube Input Buffer Purifi 1ET-400A, NC500OEM From $ 565. Input buffer. It has a transformer input for unbalanced to balanced conversion. Skip to content. epfvl yhdgfb dbhc zodb yfpvt xnnevl jqg zezfanrd vow msu