Purifi input buffer. I'll INPUT BUFFER FOR HYPEX NC500 AND PURIFI AUDIO 1ET400A MODULES This buffer has been designed in close collaboration with Richard Doporto, of Sonic Imagery Labs, who has provided us with invaluable technical information to adapt the 994 Enh Ticha operational amplifier to this buffer board so that it fits perfectly with the Hypex NC500 module. The Apollon Audio Purifi 1ET6525SA dual mono amplifier delivers exceptional performance with its ultra low distortion (THD+N – 0. Features: –Designed by Andrew Sparks of Sparkos Labs –Available high quality discrete Class A opamps in this listing . They provide Aug 16, 2021 · Hi, I would like to purchase the VTV AMPLIFIER Stereo Purifi Audio 1ET400A, however I have no idea which input buffer to choose? Does the Stock Hypex Factory Buffer will be good enough? I will connect it to my AV receiver Denon 4500H and Front speakers: Morel Octave LE6 floor standing. VTV Amplifier Custom Hypex Input Buffer made for the Hypex NC500, NC1200, NC2K or Purifi 1ET400A and 1ET6525SA . This combination produces a great output power and, harmonically, is very similar to a triode SE valve power amplifier. Key advantages: Fully differential output for full power, even with a single-ended source. Features: –Fully powered by the SMPS Power supply. This input buffer is designed for the following Purifi and Hypex Class D amplifier modules: 1ET400A, 1ET6525SA, 1ET7040SA, 1ET9040BA, and NC500. 00017 %) as a result of the Purifi 1ET6525SA amplifier module combined with our custom input buffer boards. Mar 20, 2020 · 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. –Board includes Genalex Gold Lion 6922 Gold Pin tube –High-end Sparkos low noise 15V regulators. Order Neurochrome Universal_Purifi (6113-Universal_Purifi-ND) at DigiKey. The VTV Tube Buffer is compatible with all NCore and Purifi models and installs just like the standard VTV Custom Buffer. Check stock and pricing, view product specifications, and order online. What is the exact purpose of the OP amp/input buffer board and why allow for different implementation of these by 3rd parties? The idea is to allow the companies using the modules to have something differentiating themselves from their competitors. Improving on the Purifi EVAL1 and the Hypex NC500 evaluation board, the new universal single-channel (mono) design provides a differential output for the amplifier, even if the input to the buffer is single-ended. Opamp choice is also flexible. 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. This input buffer is intended for use with the Purifi 1ET400A, Purifi 1ET6525SA, and Hypex NC500 Class D amplifier modules. –Accepts 6922, 6DJ8 or E88C vacuum tube. The circuit is valid for Class D power modules, model 1ET400 from manufacturer Purifi Audio and model NC500 from manufacturer Hypex Aug 16, 2021 · Hi, I would like to purchase the VTV AMPLIFIER Stereo Purifi Audio 1ET400A, however I have no idea which input buffer to choose? Does the Stock Hypex Factory Buffer will be good enough? I will connect it to my AV receiver Denon 4500H and Front speakers: Morel Octave LE6 floor standing. The key features of the Input Buffer are: Sonically transparent as evidenced by the ultra-low THD, IMD, and noise VTV Amplifier Custom Hypex Input Buffer made for the NEW PURIFI 1ET7040SA. The stock input buffer for the Hypex amplifiers uses the very good 4562 or 1612 IC. Unlike other buffers, including the Purifi EVAL1 and the Hypex NC500 Evaluation Board, this Input Buffer will provide a differential output for the Class D amplifier, even if the input to the Buffer is single-ended. " So, what does it all mean exactly? For me I noticed a few things! May 28, 2020 · And now the Purifi is like that as well. VTV Amplifier Custom Hypex Input Buffer made for the Hypex NC500, NC1200 and NC2K. I'll. Get the Mar 19, 2025 · A new universal input buffer board, designed to extract the best possible performance from Purifi and Hypex Class-D amplifier modules. A three-pin connector footprint provides direct access to the Purifi 1ET400A / Hypex NC500 input. This buffer has the particularity that carries a double Korg Nutube triode. The input buffer is now compatible with the new Hypex NCx500 module The Hypex NC500 and the Purifi Audio 1ET400A are two single-channel, extremely high-quality, analog input power amplifiers modules which operate in class D. It also is an excellent choice for the Purifi-Audio 1ET400A and connects flawlessly to the module. Apr 26, 2020 · Purifi 1ET400A / Hypex NC500 Input buffer with Korg Nutube valve [Updated] This buffer is based on the double Nutube triode from the Japanese manufacturer Korg. A two-pin connector footprint provides access to the remote sensing pins of the Purifi 1ET400A / Hypex NC500. Four independent ultra low-noise voltage regulators for analog and digital power. May 28, 2020 · And now the Purifi is like that as well. Controlled common-mode voltage to prevent power supply bus pumping. Jul 17, 2023 · The buffer can be disabled by removing two resistors. The key features of the Input Buffer are: Sonically transparent as evidenced by the ultra-low THD, IMD, and noise We have developed an input buffer for the Hypex NC500 and 1ET400 Purifi-Audio power modules. bgiyzv yygvqo kvpz ytlll efnudn uej nsft hlnpc hly tkne