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DIY Purifi 'Mono' Amp Builds - to be discontinued

JimB

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A place to share resources and experiences for 'mono' Purifi 1ET400A builds, regardless of the number of channels in the case. The existing thread is already very long, and mostly about stereo builds, especially (but not exclusively) based on the Purifi EVAL1:
https://www.audiosciencereview.com/forum/index.php?threads/diy-purifi-amp-builds.10478/

With availability of the new Purifi EVAL2, single channel kit, we should be able to cover new information without it getting lost in the other thread. Information on other single channel solutions is also appropriate here, including input boards, power supplies and cases, etc..

EDIT: I now see that there is an exiting thread that can be good for this. Let's continue the conversation over there:
https://www.audiosciencereview.com/...ifi-monoblock-or-3-channel.17940/#post-598823

I cannot delete this thread, can you, @amirm?
 
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JimB

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In addition to the DIY single input buffer from @tomchr, Purifi has now posted their single channel input buffer in the EVAL2 'kit' in their web store. It seems to be the same as the stereo EVAL1, but just a single channel. Is it better? The regulator supplies only one channel, etc.. Single channel inputs lend themselves to odd numbers of channels, 1, 3, 5, (7?), with corresponding challenges for power supplies, cabling and cases.
https://purifi-audio.com/vare/eval2/

As with other single channel solutions, a 2-channel amp built with two EVAL2s is quite a bit more expensive than a single EVAL1.
 

phoenixdogfan

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The natural accompaniements are, I think, the Hypex SMPS600SN400 and a Hypex adapted mono case, or, if you want to make a 3 channel amp, an adaptation of the 300 mm case I bought. Hope Ghent get a case and hook up wire out there with all deliberate speed.

The very best thing, of course, would be for Purifi to make their own power supplies. That would enable them to put together easy to assemble DIY kits, the same way Hypex does.
 
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JimB

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The natural accompaniements are, I think, the Hypex SMPS600SN400 and a Hypex adapted mono case, or, if you want to make a 3 channel amp, an adaptation of the 300 mm case I bought. Hope Ghent get a case and hook up wire out there with all deliberate speed.

The very best thing, of course, would be for Purifi to make their own power supplies. That would enable them to put together easy to assemble DIY kits, the same way Hypex does.
Replied here:
https://www.audiosciencereview.com/...ifi-monoblock-or-3-channel.17940/#post-599690
 
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