Workshop - DIY kit - Purifi Eigentakt EVAL2 mono amplifier

[@michau_12]

🇩🇰Thank you for this video, Im going to make my home build speakers active with Purifi, product of Denmark 🤗👍

[@TheAlphaAudio]

Nice.

[@jimovergaard1254]

I bookmarked this video as I find it so inspiring that I would like to create a pair.

[@jimovergaard1254]

I remember the first amplifier kit I made was the Hafler DH-200 35 years or so ago. It was able to drive my Koss Model 1As better than SAE or anything else. The Phase Linear 700 immediately was fried. This is so much more well thought out, it's hard to believe anyone would by one assembled. The options are great too. Thank you for the video. You show how to create something that everyone should watch and learn from working with the components themselves as we all learn from your example and hopefully, a new generation of audio tweekers to those inspired to follow the science and math behind it are coming to rescue audio with well engineered products at a reasonable price as the audiophile has priced good sound into the stratosphere and often measure and sound worse than the hype.

[@SoundImportseu]

Great video! Thanks for referring to our webshop!

[@TheAlphaAudio]

No prob!

[@traian.boldea]

Yes yes yes, Thank you. I have a nad 298, but I can feel the diy itch

[@thomaslutro5560]

I'd love a three channel version. Oh, and all the other stuff needed for a fully active system.

[@TheAlphaAudio]

Hahaha.... Yeah. Well I guess loads of active versions will appear soon enough.

[@thomaslutro5560]

@@TheAlphaAudio As the market stands now, I'd like to try for the Satori Waveguided tweeter and some kind of cardioid solution with the Purifi drivers down to 80 or so, driven by Eigentakts, and a multisub below that, possibly controlled by the new DEQX Pre-8. But even contemplating the idea hurts my wallet.

[@TheAlphaAudio]

@@thomaslutro5560 indeed... But if you want quality... ;-)

[@StevePilgrim2013]

Outstanding video! Thanks.

[@avgeek8810]

Thanks for the video! Now tell us how it sounds ;) I already have a 3 channel purifi based amp but still it’s fun.

[@TheAlphaAudio]

We will write the 'sound-review' very soon. No worries :-).

[@avgeek8810]

@@TheAlphaAudio Sounds good ;)

[@tom_loves_audio_tech_gaming]

@@avgeek8810 If you know that is "sounds good" why do you need a 'sound-review' 🙂

[@avgeek8810]

@@tom_loves_audio_tech_gaming It’s fun to hear others impressions and also great to get the words of the modules out there in the world :)

[@sveneisenhauer1]

With music clips, too, please! Yes, I know I know,… someone will point out it won’t sound the same on my computer/headphones/speakers/etc., but we can still get somewhat of an idea. 🤩

[@stefanospimenidis640]

Thank you! sooo! informative!!!

[@ruudstet3186]

I remember your Eval1 project and that later on It didn't match well with power hungry speakers. That was unexpected, with a 1200va power supply. The wires from ac inlet to hypex on that project were very thin, if I remember correctly. The diameter of wire on this project seems to be of a somewhat larger diameter. Could you check if powering inefficiënt speakers is ok now? It should of course, with two times 1200va on a stereo amp that has ample output power. I've been curious about this, since I own a ready built eval1 that has always showed total control of my 85db (in) efficiënt speakers up to silly volume levels.

[@TheAlphaAudio]

Inefficiënt doesn't mean hard to drive ... If the impedance is flat and doesn't 'dip' they can be an easy load. We will check the performance of the Eval2 soon.

[@luegotelodigo]

They drive my 3 Ohm Apogees so I don't think it's a matter of power. It may be because of the low gain of the buffer

[@themaskedsingercucucachu8225]

Are these available to USA customers, I couldnt find anything on their website, but I don't speak much German.

[@TheAlphaAudio]

I guess they will ship to the USA.

[@StevePilgrim2013]

I still have not found the complete kit for EVAL-1 or EVAL-2. Hypex has complete kits via diyclassd.com, but I've found nothing comparable from Purifi. I don't know who put together the list of items shown in the video.

[@TheAlphaAudio]

@@StevePilgrim2013 We got a complete kit. We contacted the supplyer to give is the link to the complete kit. We will add it ASAP.

[@SoundImportseu]

SoundImports is offering express shipping to the United States, yes. Please notice we are having a full English webshop. The cases will be online anytime soon!

[@TheAlphaAudio]

ndt5.net/c/?si=14570&li=1627332&wi=361192&ws=&dl=en%2Fsoundimpress-pu400-1ch-kit.html

[@nhennessy6434]

The SMPS 1200 A400 seems like overkill to me. I use that to power my Eval 1 Eigentact Stereo amp and it's more than sufficient for that purpose. I think Hypex just doesn't have anything that would work in mono, so they threw that in. Also, if blue light triggers you, the led can be ordered in orange from Ghent.

[@psyphonyxaudio]

I was excited to try this as a DIY kit .. but the cost to order per amp is less than it costs to buy locally premade from a brand. That just seems very odd..

[@TheAlphaAudio]

How is that odd?

[@coreyriggle]

Does anyone make a DIY case for multiple, 4 or more purifi EVAL2 mono amplifiers?

[@TheAlphaAudio]

@@coreyriggle not that I know.

[@aussie8114]

If they don’t deburr the punched holes they should at least include a few bandages 😢

[@TheAlphaAudio]

Yes. Damn... It was pretty nasty!

[@dogbiterabies2547]

dreamy AA

[@TheAlphaAudio]

?

[@user024-u3h]

How compare this product, purifi 1ET400A, with X150.8 passlabs?

[@TheAlphaAudio]

Totally different sound.