Turns a lot of mid-gain amps into ripping monsters. I just tried it on the JCM800 and, dayum...
The only caveat is that, like a real amp, the more you turn the MV down the less effective Presence and Depth become (since the loop gain is reduced).
The only caveat is that, like a real amp, the more you turn the MV down the less effective Presence and Depth become (since the loop gain is reduced).