trouble with high power amp

[OMNIFEX]

Originally posted by anatech


2. If your transistors were shot, they become expensive wire. You blow fuses and that is not happening.

Not all the time.

Pending on the amplifier you can indeed lose the output transistors, not blow fuses, and have the amplifier not go into protect mode.

[anatech]

In that case you would have both emitter resistors and base resistors open. I have seen that very occasionally. But if the rest was working you would still get full power until the rest blew.

It has to be supply.

-Chris

[bombardon73]

Guys, there's something else. The amp also goes into protection mode when there are NO speakers attached to it.
When the 1e red LED starts to blink and you turn it up a bit the amsp goes into protection mode. So there's no way I can led the 2e LED burn.

I don't know if this is common with these amps, but they use some kind of technologie that checks the in and out(speaker) signal. Maybe that has something to do with it.

here's a link that tell something about that.
http://www.bell-audio.de/PRODUCTS/PS...ower_amps.html

[OMNIFEX]

Dude, to be honest, you may need to contact bell-audio.

I remember an amplifier that would go into protect mode, and, stay there (You had to literally turn off and on to reset it) if it clipped too
hard.

With your amp offering half output, its quite possible the amp
is going into protect mode because its seeing an overload once
it clips.

Amp protection circuitry can be anything the manufacter wants.

I can't say I've ever seen two different brands of amplifiers react
the same when it comes to the protection circuitry.

And I'm talking Pro Amps here............

Home amps are a little more predictable.