Review and Measurements of Purifi 1ET400A Amplifier

[clanon]

Mosfet are on the bottom side of the board. The transformer is the output filter.

Why is there not A SINGLE picture of'em...?

 

[Rottmannash]

Why is there not A SINGLE picture of'em...?

they're shy and don't want the attention? There has to be a photo of the underside of one of those modules...

 

[mocenigo]

they're shy and don't want the attention? There has to be a photo of the underside of one of those modules...

You can see where one is here
https://vtvamplifier.com/wp-content/uploads/2020/04/DO01020121SMALL-1-scaled.jpg

And the other one here

https://www.audiosciencereview.com/forum/index.php?attachments/purifi-1et400a-red-box-jpg.29050/

 

[kiwifi]

they're shy and don't want the attention? There has to be a photo of the underside of one of those modules...

The FET's are sandwiched between the underside of the PCB and the metal base-plate (heat-sink), so the back of the module is just the base-plate. Even removing the base-plate would only show the back of the FET's, not the part numbers. If that is what you are after, you would need to de-solder them from the board.

 

[clanon]

The FET's are sandwiched between the underside of the PCB and the metal base-plate (heat-sink), so the back of the module is just the base-plate. Even removing the base-plate would only show the back of the FET's, not the part numbers. If that is what you are after, you would need to de-solder them from the board

 

[dped90]

https://www.whatsbestforum.com/threads/any-love-for-purifi.32530/

https://www.whathifi.com/reviews/march-audio-p452

https://www.soundstagehifi.com/index.php/opinion/1420-purifi-audios-pint-sized-powerhouses

However, not all Class D amps are offered as cheaply as many probably think.

https://www.stereophile.com/content/recommended-components-2021-edition-two-channel-power-amplifiers

But how these > $3K models might compare in actual listening tests with those audioscience.com and those above have reviewed would be very useful.