B&K 200.5 S2 Power Amp problem - Please help

can you elaborate on your statement - "all 5 channels, has had low output"? do they all have low output at the same time? Is it intermittent? Have they ever produced strong output?

There are a couple of things that could be simple to fix. 1) are the volume pots on the back of the amp turned all the way up? (forgive me for this one - it's just worth asking cause it's the first thing I would check if I had a problem. 2) Fuses blown - B&K uses internal Rail fuses. Their not hard to replace but you have to open the amp up and be comfortable working inside. Also you need to know how exercise safety around high voltage circuits.

I found a document I previously received from B&K showing the fuses used on each of their amps. Below are the spec's for the Ref 200.5:

Reference 200.5
Main(Line) - 15A SB/250V
Rail (internal) - 6A SB/250V
Speaker - 6A SB/250V

.

I had a 7250ii (200X 5) and a 2500 (60 X 5). They had a slow blow fuse, but when it went, nothing worked. Radio Shack may have one, but I think I got mine from an Automotive shop like Autozone or Checkers.

It sounds like the vloume knobs in the back, but it not are you getting a Hum or buzzing sound as well, it so that could be a ground problem with the RCA inputs, they can get dmg during shipping.

Hope this helps.

According to information on the B&K website, they are working on a solution for warranty repairs, and that owners should contact the following e-mail address for technical support: george@ee-av.com

I appreciate all your information and suggestion.

Bdgregory - Yes they all have a low output at the same time since I purchased them on Ebay. At first, I did not realize it. After I had a chance to listen to my friend's B&K system, I found out something wrong with my amp. My amp does not have the volumne knobs on the back, so I could not do anything else. Can you explain more the fuse number below?

Main(Line) - 15A SB/250V
Rail (internal) - 6A SB/250V
Speaker - 6A SB/250V

If I go to Automotive shop per Briweve's suggestion, what information I should give or ask them? Sorry I'm blind with this.

Briweve - Again, my amp does not have the volumne knobs on the back. I turned the volumne of my pre-amp to 90%, there's no HUM OR BUZZING SOUND from my speakers.

Gbart - I emailed George, but I have not received any reply from him yet. Also I tried to contact the seller and hope he can response back and help me with it.

Thanks again guys!