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Discussion Forum for Mesa Boogie Products
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PostPosted: Thu May 18, 2017 9:19 am 
Mark III

Joined: Sun Mar 06, 2016 10:38 am
Posts: 244
Location: Western Colorado
Does anyone have opinion on Mesa's STR-425 5881 tubes?

Tone-wise I'm mostly a metal player. Reading around I seem to hear real mixed reviews on this tube. Reason I'm asking is, my IIC++ DRG has the 105PT and it's running 515pv. This is Mesa's only tube that'll take that kind of abuse reliably.

I have old Sylvanias in it now which sound amazing, but when they wear out I'm not sure I want to pay top dollar for old used tubes that might not be biased right. Trying to research my options before I need them!

As far as new production tubes I've been pointed towards the TAD 6L6GC-STR, Tung-Sol 7581A, and Tung-Sol EL34B. I've never tried any of these.

Ideas / experience are welcome!

PostPosted: Fri May 19, 2017 3:32 pm 
Mark IV

Joined: Fri Jun 30, 2006 7:00 pm
Posts: 934
For what I understand they are a little bit bassy and good for jazz.
When I asked Mike Bendinelli if I could use them in a Mark II-A, he said better not because the II-A was already a dark amplifier.


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