Review and Measurements of Purifi 1ET400A Amplifier

[g29]

...
SO! If you could buy it today, what would you do with it? Have a case lined up? Any other implementation plans?

I have toyed with the idea of repurposing/recycling a retro case of some sort.

 

[restorer-john]

I have toyed with the idea of repurposing/recycling a retro case of some sort.

Great idea. What about something like this?

 

[g29]

Great idea. What about something like this?

View attachment 42797

I was thinking about visiting some 2nd hand shops and see what is out there.

Another thought was to make 2 stereo amps out of these aluminum cases for vertical biamping.

 

[JimB]

Great idea. What about something like this?

View attachment 42797

I dunno. Maybe a little shy on heat sinking for two channels. Looks like a mono block version.

 

[JimB]

I was thinking about visiting some 2nd hand shops and see what is out there.

Another thought was to make 2 stereo amps out of these aluminum cases for vertical biamping.

Ooohhh. Shiny! Tall enough for the power supply?

 

[g29]

Ooohhh. Shiny! Tall enough for the power supply?

The Hypex 1200 should fit fine.

Too bad Altoids doesn't come in commercial sizes.

 

[dkinric]

Any idea of ballpark cost?
For comparison, I bought a new Hypex NC122MP (0.0015% THD and 118 SNR) 2x75 watt stereo board for only $215. I would think the Purifi are much more expensive.

 

[pos]

probably in line with nc400 intruduction price

 

[Zoomer]

Then we might be in for a treat from Audiophonics in February. From a conversation I had with them 18 november:

Nous travaillons actuellement sur ces modules :
https://www.purifi-audio.com/eigentakt/

Le développement viens à peine de commencer.
Je dirais [ils seront disponible] à vu de nez fin janvier début février.

------------------------------------
We are currently working on these modules:
https://www.purifi-audio.com/eigentakt/

Development has just started.
I would say [they will be available] roughly in late January early February.

 

[HLee]

They are selling modules, but I cannot find power supplies.
I expected DIY kit like Hypex NC400
https://purifi-audio.com/vare-kategori/transducers/

 

[Stretchneck]

Power supplies can be purchased from Hypex - what supprises me is that they're REALLY affordable! EVAL1 is 4,700 Danish Krone, this equals
534.61 Pound sterling

 

[Deleted member 65]

They are selling modules, but I cannot find power supplies.
I expected DIY kit like Hypex NC400
https://purifi-audio.com/vare-kategori/transducers/

Thx for link. Latest info I read on PSU is that it’s under development. Hypex PSU’s work with the Purifi.

 

[Stretchneck]

Hypex will have to drop there prices on NCore as a result of this competition in the market.

 

[Killingbeans]

They are selling modules

Nice! Merry christmas!

About the same price as NC400. I'd have a hard time choosing...

but I cannot find power supplies.

https://www.diyclassd.com/product/smps1200a400/10

I expected DIY kit like Hypex NC400

They seem to aim mostly at the OEM market to begin with. I'm keeping my fingers crossed for some more DIY friendly products in the future.

 

[digitalfrost]

But the cable set for the PSU -> ncore connection do not fit the purify, right?

 

[Zoomer]

Thx for link. Latest info I read on PSU is that it’s under development. Hypex PSU’s work with the Purifi.

If I remember correctly the Hypex SMPS was developed by a specialized engineer, not by Bruno P.
Any obvious areas for improvement, apart from it being a business-driven decision by Purifi to offer their own?

 

[pos]

Any obvious areas for improvement, apart from it being a business-driven decision by Purifi to offer their own?

Idle power consumption (ie efficiency at normal usage levels), in line with what Bruno has done with the ET400A compared to the nc500.

 

[mk1classic]

One Eval1 kit ordered! Time to review the market for PSUs.
Hypex has, but maybe one should look into Neurochrome's supplier https://connexelectronic.com

 

[Killingbeans]

But the cable set for the PSU -> ncore connection do not fit the purify, right?

Correct. As far as I can tell, you need to hack the cable set from Purifi. There's no plug n' play solution available.

EDIT: Nevermind. Look below.

 

[mocenigo]

But the cable set for the PSU -> ncore connection do not fit the purify, right?

No, but Purifi has a cable set that costs very little and it is only a matter of plugging into the right holes, I believe they explain how.