Diagnosis Please

[take2]

I've got a Gibson Ga30 RVH 30 watt super goldtone amp. I recently changed the tubes which could cause some of the effect that I'm going to describe, but I wouldn't think it would effect it this much. The amp seems to have lost a significant amount of bass response - I had the bass on 4 and have now put it on 10 and I am still not getting the response I had on the lower setting - this problem seems to be exaggerated on the clean channel and less so on the dirty channel. Any Ideas?
I should add that I was getting a burning (more of an over heating rather than an actually burning) smell a couple of weeks ago, turned the amp off and later tried it again - I can't remember when exactly I noticed this issue - it appears much worse in the last couple of days.

 

[Abyssous]

Re: Diagnosis Please

I've got a Gibson Ga30 RVH 30 watt super goldtone amp. I recently changed the tubes which could cause some of the effect that I'm going to describe, but I wouldn't think it would effect it this much. The amp seems to have lost a significant amount of bass response - I had the bass on 4 and have now put it on 10 and I am still not getting the response I had on the lower setting - this problem seems to be exaggerated on the clean channel and less so on the dirty channel. Any Ideas?
I should add that I was getting a burning (more of an over heating rather than an actually burning) smell a couple of weeks ago, turned the amp off and later tried it again - I can't remember when exactly I noticed this issue - it appears much worse in the last couple of days.

my diagnosis would be that your amp is burned, tubes glow or blow, they don't burn. touched anything else replacing the tubes? used the exact same tubes and inserted properly? can you see the tubes? after one broken tube, some amps use remaining tubes to continue. you have little less volume and maybe less tone.. check tubes, if not so, i can't help