Combo: Cheap way to separate the speaker from the amp?

[BrownieD2W]

Hey guys,

It's been awhile since I posted anything, but I have run into a bit of a dilemma and could use some input.

I've had my Mark V combo for 5 years now, it was my first tube amp, and I finally feel like I know her quirks pretty well now. It seems like it goes through Preamp tubes after about 1-1.5 years. First I was wondering if that was fairly typical for Preamp tubes?

And secondly, I am fairly certain that the close proximity of the speaker is really what causes the Preamp tubes to go bad quicker, so is there a relatively cheap way to either pull the speaker out or the amp out and create a little bit of distance between the two aside from buying a standalone speaker cab?

 

[Demon Of The Fall]

I have the same feeling, the vibrations of the speaker has some effects on the tubes... there's two options, change it for a head plus a cab, or just buy a cab but please don't destroy the combo ..... I buy a 2x12 recto horizontal and problem solve, I am actually thinking in buy a head and leave the combo at home.... If you want to keep the particular sound of the C90 open back look for a cab with thats properties, I belive tha the road king 2x12 is an hybrid c30 closeback plus a c90 openback....

https://dl.dropboxusercontent.com/u/76943869/IMG-20140429-WA0007.jpg

Greetings
DZ

EDIT: I know that this option is not cheap but I don't like the idea of take apart this beautiful piece of equipment.

 

[LesPaul70]

is there a relatively cheap way to either pull the speaker out or the amp out and create a little bit of distance between the two aside from buying a standalone speaker cab?

A headshell for the amp chassis. Then use the original cab as a speaker cab only.

Cheap? Depends on what kind of standalone speaker cab you were thinking of.

As an aside, I've had my Mark V combo for 4 years now and never had a preamp tube go bad so far (I've swapped one or two for other reasons though). I don't think that's necessarily caused by your amp being a combo...

 

[BrownieD2W]

is there a relatively cheap way to either pull the speaker out or the amp out and create a little bit of distance between the two aside from buying a standalone speaker cab?

A headshell for the amp chassis. Then use the original cab as a speaker cab only.

Cheap? Depends on what kind of standalone speaker cab you were thinking of.

As an aside, I've had my Mark V combo for 4 years now and never had a preamp tube go bad so far (I've swapped one or two for other reasons though). I don't think that's necessarily caused by your amp being a combo...

Could be, the main problem I am having is a very high pitched ringing noise at high volumes in channel 3 mostly, a problem that is not present the times I've swapped in new tubes. Usually it's one at a time that goes bad, it's never more than two anyway. But the problem has been fairly consistent over the years, every year to year and a half. I have no other odd problems, noises, or malfunctions. And I did have the amp looked at by a Tech about 2 years ago, and everything looked good at the time.

Would you have a suggestion as to what could be causing the problem?