Marshall Jubilee 2558 a little quiet

[clothwiring]

I run my Jubilee 2558 on 5 nearly all the time. Last night it was a bit quiet so I turned it up to 6. Would this mean it's possibly time to replace the power tubes? It's also been a bit noisey lately. Nothing else appears to be suffering, my highly scientific smell test reaveals nothing.

[John Phillips]

Sounds like the most likely. Before you shell out on new power tubes though, I'd try a new preamp tube in one slot at a time to eliminate that as a possible cause - you should keep a spare anyway if you don't have one already :). A spare set of power tubes is a good idea too, so if you buy new ones you can keep the old ones as spares anyway - don't throw them out unless they've actually failed, you never know when you may need one.

[clothwiring]

I'm short on tubes right now. I have to sorta retube a few amps anyways so I'll stock up! I could swap tubes out of my 2555 into the 2558 and use that to determine if the tubes are bad...then I'll go 1 by 1 to figure out what's going on exactly.

I'm still sorta a newb to tubes as far as dying and failing so I look for guidance on these subjects so I can make the best decisions.

Thanks for the reply John! I appreciate it.