CD signal into a phono stage?


I'm trying to sell an integrated amp. Although I have no real reason to believe that there is a problem with the phono stage (since I've never used it), I think it might be a good idea to check it to make sure. How can I do this? Is it OK to run my CD player through the phono stage? Would the signal be too strong and fry the circuit? How about a tuner? There are actually two phono stages - it's switchable between MM and MC. Can I check both stages with a CD player or tuner? If not, any other ideas?

Thanks
Don
hessong

Showing 1 response by sidssp

You cannot do that. Beside overload problem, phono stage has RIAA equalization which increase the bass and reduce the high frequency. The difference of gains can be as much as 20db on each end comparing to the 1K point. It will not sound right if you feed it a CD signal.