FS Philips TDA1541A R1 and Philips TDA1541 DAC chip

[sumonkabir]

I have one spare TDA1541 and TDA1541A R1 which I pulled out from Marantz CD40 and Marantz CD65. Both tested working fine.
I like to try TDA1541A S1 and need extra cash. International postage availble. Paypal welcome. Item located in Australia. Each $80 AUD or $60 USD.

 

[sumotan]

Interesting that you've got the Abbas board. Uses lots of nos as well as germanium stuff.
How does it sound ? Share something with you, output of dac to analog try to use very thin solid core wire like good Cat5e gauge & listen again goes for analog to rca sockets as well.

Cheers

 

[sumonkabir]

This wires? see yellow highlighted bit.

 

[sumotan]

Yes & the Rca ones as well. Try it & see how it sounds.

 

[sumonkabir]

Yes & the Rca ones as well. Try it & see how it sounds.

More bass and 3D midrange😀. Amazing how small change can alter sound😀
Thanks for the tips. Now sell me your S1.

 

[sumotan]

Good that it works for you too. Can't say too much for not I'll get bombarded. Lol
Sorry S1 are for keeps. I also see that you using Johns recommendation of 100uf caps
for the 14 caps is correct ? Tested it & didn't work for my set up.

Cheers

 

[sumonkabir]

My caps are different. See photos. I changed to RCA 5692 red base and valve rectified b+. Next level midrange and vocal😀

 

[sumotan]

Too many AB resistors spoils the soup. If I not mistaken the i/v stage use germanium too right ?

 

[sumonkabir]

Too many AB resistors spoils the soup. If I not mistaken the i/v stage use germanium too right ?

Yes

 

[sumotan]

Change the AB i/v resistor to Shinkoh 2 watt & there'll be another leap in SQ.

Cheers

 

[sumonkabir]

Change the AB i/v resistor to Shinkoh 2 watt & there'll be another leap in SQ.

Cheers

Which one? Can you please mark them?

 

[sumotan]

Can't tell from pics. Do you have a schematic ?

 

[sumonkabir]

I have attached I/V part.

 

[pathway]

I think Abbas uses a type of active I/V if memory serves me correctly.


Edit: a friend here in Brisbane has a 2.2SE Abbas, and it sounds lovely, best DAC I have heard for realism, he tried a couple of S1 chips in his and preferred it with the R1 it came with, might be as Abbas designs with it in mind. I went with a late standard Taiwan A chip over some S1's as the Holland S1's were a bit dark in my modded Marantz, but could be my preferences due to system balance.


Good luck with the chip sales.