2 amps not working but tubes are glowing..

[Jbassist]

I got a problem guys..

I was reamping some tracks, normal amp level, nothing that should kill the tubes or fuses imo.
When all of a sudden the amp just stopped, amps still glowing and power was still on aswell...
only it didn't give any noise anymore, and it won't anymore!
what the hell happened here?

The nasty part is that i just switched to a Framus cobra and... after a little reamping the same thing happened
Only the Framus stopped glowing tubes and stopped power aswell...

2 amps down!

I then switched to a different powersuply (thing i the wall i don't know how to call it in english..) with a jcm800 (hoping to not kill that sucker aswell..) but then it was fine.

Seriously.. what happened?

mvg,

JB.

[Kiwiburger]

Were you using a proper reamp box, to attenuate line level down to guitar level, and match impedance? Or were you hitting the amp with low-z line level for maximum saturation, and controlling the level with a master volume?

It's possible you've fried a tube or two or popped a fuse ...

[gurubuzz]

Originally Posted by Kiwiburger

Were you using a proper reamp box, to attenuate line level down to guitar level, and match impedance? Or were you hitting the amp with low-z line level for maximum saturation, and controlling the level with a master volume?

It's possible you've fried a tube or two or popped a fuse ...

Check the fuses first before you panic...

[84K]

Originally Posted by gurubuzz

Check the fuses first before you panic...

X2 beat me to it.

You are probably shorting your fuses. Don't worry, the chance of you blowing the transformers in two amps are slim... in fact you are probably more likely to get struck by lighting while reading this post.

[Kiwiburger]

How would the fuses be shorted? Perhaps different grounding schemes between the DAC or active reamp and the guitar amp?? I can't quite picture it.

I could imagine higher plate currents flowing if the input stage was severely overloaded, like +4 line feeding an instrument input ... but maybe i'm ignorant.

I like my passive Reamp v2 box - proper controllable attenuation, correct impedance match and transformer isolation.

[Kiwiburger]

What speaker load? It's isn't perhaps too many cabs connected in parallel?