As a past owner, I don't think the Mesa is a hiend amp.
It lacks detail, air and soundstage ability.
The bias control/balance controls are poorly designed,
as is the power supply regulation and overload protection(check the four resistors located by the balance/bias controls in each channel and make sure they're not burned or blown,before make an offer on an amp.
All the controls are fun, but I rather have an amp that's
optimized for one mode of operation.
If you want to soften the sound of your system, you've found your amp.
Aloha.
PS- I had a triamp version and tried it with EL-34 & 6L6s.
The 6L6s had better bass control and impact.
