Mono buffer for Purifi 1ET7040SA

[Koifarm]

As requested the 1et400s buffer for the 1et7040sa.

With below the gerberfiles.

 

[platon.rado]

Thanks.

 

[bisouxxx]

As requested the 1et400s buffer for the 1et7040sa.

View attachment 1147181

View attachment 1147182

View attachment 1147186

With below the gerberfiles.

Good day Koifarm,

I finally get the chance to mount your mono buffer .
All good 👍
Regarding the sound I'm surprised, lots of bass, but very low voices ... I don't understand .
I have focal 1028be

Thank you

 

[Koifarm]

There is a fault in the list on the schematic. Replace C1…C4 with 100p not 100n.
I have corrected the schematic

 

[bisouxxx]

Any voltage/model recommandation for the 100nF cap?

Thank you

 

[Koifarm]

For the 100p I used WIMA fkp2 630V RM5. For the 100n I used WIMA 63v RM5.

 

[platon.rado]

Hi bisouxxx
What IO did you use???I use OPA2604 and OPA 1642. Excellent results.

 

[Koifarm]

I used AD827, LM4562 and MUSE02 akso all with very good results.

 

[Koifarm]

Updated gerber in post 1 with modified 54 pin connector( holes are bigger from 30 to 40).

 

[platon.rado]

Thanks

 

[wyup]

Regarding the sound I'm surprised, lots of bass, but very low voices ... I don't understand .

Hi,
I'm impressed at your building Koifarm's buffer. Congratulations.

I'm curious, how does it sound now with the caps modifications?
Does it get to sound natural?