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mesa boogie 400+ bass amp


MB1
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MB1. :)
First time ive ever seen one of these in the flesh so to speak,heavy,most definately,looking in the back of the amp this beasts got 12 valves in it!...12 i counted them twice just to make sure.how much do they charge to replace valves on this? serious bit of kit!.

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Aye it does have one or two 'pipes' in there - The good thing being that it never really breaks a sweat. I retubed mine with a matched set from Watford Valves for about £110, so not too bad. The problem is that the tubes you buy must be matched to the fixed bias of the amp. This means choice is limited and expensive. The alternative is a non fixed bias - With my Trace, for example, you can bung in any set of four KT88s (~£50 for a matched quad) and set the bias to match, making it much cheaper..

I am sure there are bebefits to both designs that go way over my head, but my wallet is happy!

Ta!
ped

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