Ampeg SVT III PRO - how to test?

occam · #1 03-28-2011, 05:32 PM

Greetings,

I was given a Ampeg SVT III PRO amplifier that is mounted in a very nice enclosed travel rack/case. From my research it is an earlier USA made version and I have no idea if it works. I'm not a musician, but have lots of audio test equipment.

What typically goes wrong with these? Anything I can do to quickly check it out beyond just sticking a load on it and running a signal generator into it?

Thanks ahead of time...

JimmyM · #2 03-28-2011, 05:58 PM

the most common problems are the tubes going and the mosfet bias needing reset.

the best way to check it out is plug it into a cab, plug a bass into it and start playing.

occam · #3 03-29-2011, 09:07 AM

Quote:

Originally Posted by JimmyM

the most common problems are the tubes going and the mosfet bias needing reset.

the best way to check it out is plug it into a cab, plug a bass into it and start playing.

I guess I didn't make it clear. I don't have a bass guitar (or any guitar) or a bass speaker cabinet. I have some random woofers and speakers around though...

But I will test the tubes and do some other bench testing.