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I currectly have a peavey cs-800 that is about 2 years old and I am using it bridged to a peavey 18" sub for my low end. I just purchased a pair of 18" tower speakers (has a small mid and a horn) They were custom built so I dont have any specs on them. I have heard them and they sound great. I have the opportunity to buy a cs-800s amp but I was told that it has a slight hum/buzz to it. I bought the other amp for $100.00(unbeleivable I know). I will probably get the same price for the cs-800s but not sure what the hum/buzz is all about. Also how does the cs-800s perform compared to the cs-800. Physically the cs-800 is twice the size what I dont know is what level of peavey amps they are. High or low. Any help would be great Thanks

The original CS line were bullet proof. I don't have any experience with the S series but from people I know that have used it say they are still one of the better amps they've owned although they aren't as deep sounding. If you get it, i'd run your CS800 to the 18's & the other one to the mids/highs - if the speaker is bi-amp capable. If it has a buzz, for that price it's worth getting it fixed.

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Can these amps be fixed by a local repair shop or would it have to be sent off.

http://peavey.com/support/dealerlocator/

If you can't find a local authorized Peavey repair service, then i'd set up an appt. to send it back to Peavey itself.

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I've got 3 cs800s amps....one had a buzz in it. It turned out to be the removable input module. I sent just the module back to peavey and they fixed it free....peavey has a great customer service rep compared to all the others.

Make sure to check the peavey forums at their site. It is one of the best forums in pro audio.

The cs800s is a much better amp than the older cs800. I would bridge it and put it on the subs cause it will pump a full 1200 watts bridged into 8 ohms and has very decent damping, so your bass will be tighter than with the older cs800.

The older cs800 would work well on your tops cause the tops require much less bass. The older cs800 can be fed stereo off the cs800s thru an X-1 crossover input module. The X-1 input crossover module is one of the best products peavey ever produced. It simply swaps in in place of your stock input module. It should cost no more than 60 bucks from any peavey dealer....what it does is provide a built in crossover for the subs @150 Hz...then it sends the mids and highs to the other amp. It's really simple to install and cable up....you can configure it 2 way or 3 way by swapping internal jumpers....no knobs to fiddle with or patch cables....just great sound.

If you can buy a cs800s for 100 bucks, get it!....the fix will be cheap if not free from peavey factory.

okay now my friend says that its not the amp that has the noise but the speaker makes the noise when it is hooked up and their is no music playing. He says that it buzzes in and out kind of like it is pulsing. I wish I knew more about the speakers. He said that he took the speakers apart and they had carvin drivers in them. Then he tells me that he had this 18" sub hooked up with 26 gauge wire so Im wondering if that is the problem.

A passive speaker won't buzz & "pulse" by itself, it's whatever is feeding it - the amp.
26 guage wire connecting the sub is a little small, it should be more like an 12-14 guage minimum. Nothing wrong with Carvin drivers as long as they a designed for what they do.

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Buzz, not a hum?...Then it is most likely the amp creating the noise...or something inline either to or from the amp.

Best way to determine problem component is to swap inputs and eliminate all outboard gear....then swap speakers and cables and see if it goes away.

From my experience, a buzz with pulsing is a failing capacitor. Not expensive to correct at all.

Have him disconnect all inputs to amp......crank amp all the way up, with two speakers connected using good cables. If the buzz and pulsing is there, then it is the amp.

Tell him I'll take it for $100 and pay shipping!