Caps for NAD C370, info needed

[misfits73]

I'm about to replace the 2x2200uF 50V (circled in the schematic) as one of them looks bulged.

What are these caps used for and your advise on what type would be a good replacement.
Do these caps affect the sonic characteristics of the amp?

Regards

An externally hosted image should be here but it was not working when we last tested it.

 

[Jan Dupont]

Those circled in the schematic is 22uF 80V caps
They are a part of the regulated Power Supply for the Input circuit, and you can use ordinary good standard caps for that

 

[Welcome]

NAD needs to hire a different schematic drawer. The ones I've seen have been really messy, much like this one.

 

[Bill_P]

C748 and C749 are 2200uF 50V. They are input filtering caps for subsequent regulators and will not affect sound. The usual industrial quality parts are ok here - Nichicon, Panasonic, United Chemicon etc. I might go up to 63V rating if it would fit well on the board.

 

[misfits73]

Cheers guys

 

[irribeo]

Yes 40V AC pre bridge rectifier according to schematic