C400 schematics?

[cjinphilly]

After more than 3 years of driving my MB Quart components.. my C400 front left channel is crackling and sounding scratchy.. Played around with the 4 channels and isolated it to the front left channel only. I have contacted POLK regarding repair costs etc.. but i was wondering if anyone else ever had a blown channel and repaired it themselves? Any schematics anywhere?

Charles in Philadelphia

[frosty2k]

After more than 3 years of driving my MB Quart components.. my C400 front left channel is crackling and sounding scratchy

Umm what about the speakers themselves? Sounds like speaker damage imho. I've never heard of a single amp channel going bad... usually they all go funny when it happens.

[cjinphilly]

I actually spent an hour switching around connections and whatever speaker was attached to that channel was crakling... At first I thought it was one of my MB Quart crossovers but switching around connections proved otherwise..

thanx

[exalted512]

You switched the RCAs as well correct?

I highly doubt they'll post a schematic of one.
-Cody