Recent content by jalejos

Here is a review of the NC500 with the Nutube buffer. Also compares to a class A amplifier. https://www.hifi-advice.com/blog/review/analog-reviews/amplifier-reviews/atm-audio-epm-700-class-d-power-amplifier-with-korg-nutube-triode-input-buffer/

Good solution, and cheap.

It was a good idea to create the options thread for the Purifi 1ET400. A great job. Please add. ATM-Audio model EPM-450 stereo with CNC milled chassis. https://atm-audio.com/product/epm-450-stereo/ Buffer with SIL994 ATM-Audio model EPM3P mono https://atm-audio.com/product/epm3p/ Buffer with...

When I introduced this kit to my friends, they did not understand the concept and asked me: why do you add distortion to an amplifier as perfect as a class D? My answer was: Do you know of any tube amplifier of more than 100W that does not heat up, does not weigh and that its size is that of a...

Effectively. Many people like the sound of the valves. But powerful tube amps consume a lot of energy and get very hot. We, what we have done, has been a mixture of tube sound with class D power.

Effectively. Our option has been to add a buffer with a triode valve. We have managed to mix valve sound with the power of class D. https://atm-audio.com/input-buffer-for-hypex-and-purifi-audio-with-triode-korg-nutube/ https://atm-audio.com/200w-hybrid-power-amplifier-with-nutube-valve/

It as a resistance of 100 ohms in series

https://atm-audio.com/class-d-amplifier/

I have used adhesive foam rubber. They also recommend using glue or silicone.

I have designed this buffer as an option for the Hypex NC500 and 1ET400A modules of Purifi Audio. Everyone knows that these modules have a very low distortion and that many manufacturers have designed different buffers for use with different operational amplifiers (I myself have a buffer for...

As Maty commented a few days ago, I have finished the new monobloc aluminum box that will be compatible with the Hypex NC1200, NC500 and Purifi Audio modules. The information will be updated on my new website www.atm-audio.com (formerly atmstore.es and acoustic-technology.com) in the blog...

My name is J. Alejos and design and manufacture in Spain some sound equipment (preamp, DAC, power amp, etc). I also assemble equipment with Hypex modules and, soon, with Purifi Audio. My new web www.atm-audio.com (before www.atmstore.es and www.acoustic-technology.com) I have seen in some...