Mod 21 question for Beresford 7510

[daveyboy]

Hi guys I have had an op amp LM4526 fitted to this dac, as well as the Wolfson dac but tirna have informed me that I don't currently have the mod 21 chip. Is this worth having done also?

[Stratmangler]

Hi guys I have had an op amp LM4526 fitted to this dac, as well as the Wolfson dac but tirna have informed me that I don't currently have the mod 21 chip. Is this worth having done also?

Mod 21 involves swapping out the original opamp for a LM4526. It's a surface mount I/C.

What's this Mod 21 chip they're on about ?

Chris

[Maximum]

I thought this was mod 21....

http://www.homehifi.co.uk/Downloads/Mod21.pdf

[Stratmangler]

I thought this was mod 21....

http://www.homehifi.co.uk/Downloads/Mod21.pdf

There are 2 pdf files detailing Mod21 - one details the opamp change.

There's also the wire link mod to perform as well.

Chris

[daveyboy]

I was about to upgrade the other one which came in the Sony Viao box when I noticed that it did not have the mod 21 upgrade (2 off 220uF electrolytics and 2 off 22uF electrolytics changed to 47uF electrolytics & 2 resistors replaced by zero Ohm links).

Hopefully the above email response I had from them clarifies things?

[Stratmangler]

If you dig through this thread you'll find links to both Mod21 pdf's and also the wire mod http://theartofsound.net/forum/showthread.php?t=1811

Chris