Opinions on STR-425 5881 tone?

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Mark III
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Opinions on STR-425 5881 tone?

Post by GJgo » Thu May 18, 2017 9:19 am

Does anyone have opinion on Mesa's STR-425 5881 tubes?
http://www.mesaboogie.com/tubes/power-t ... R-425.html

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!
Triple Rec F/G, Single Rec, Mini Rec, Tremoverb, Roadster, Rackto, Dual/Triple Rec MW, JP2C, Mark V, Five 35, IVb, IVa, III++ red DRG, III blue DRG, III blue DG, III blue KRG, IIC++ HRG, IIC++ DRG, IIC+ SR, IIC+ DR, IIB+ SR, IIB+ KRG.

Mark IV
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Re: Opinions on STR-425 5881 tone?

Post by igfraso » Fri May 19, 2017 3:32 pm

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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