Recap Krell ksa 150

Hi all!
I finally bought a krell,i have a question regarding recap due to age.Now it sits 4 sprague 40000uF 100 volts cans in it,i measure 63 volts over the terminals on the caps im buying mundorf m caps that is pretty expensive so i wonder if i can go for the 80 volts option instead than i will save 20 euro a piece.And why are they so oversized"the spragues" if they are??
Kindly/Ingemar

 

Sorry for the off topic ,
Do you perhaps know where I can get the schematic (or better service manual) for KSA-150. I have problems with the right channel.
Regs,
Jarek

 

Hi Ingemark,
In My KSA-150 The voltage over main electrolitic capacitors is 74VDC. Power supply is 230 VAC.
Regards,
Jarek

 

Krell wont let you have their service manuals usually - but you can try an e mail!