holy-diver said:
What about the amount of low end? I am mainly concerned of the low end and the tightness or percussiveness at volume. Thanks!
What stripe/version of Mark III are we talking about? Big difference in low end between triode and pentode, as well as 100w A/B vs 75w Simul-Class.
My Mark III was a red stripe Simul, and I think the Mark V does the tight low end modern metal thing better. My III was more crunchy, along the lines of Metallica, and not so much chuggy, along the lines of Lamb of God. For actual low end both the III and the V can easily compete with a Rectifier, however the V sounds more natural at it. My III used to sound like it had an artificial "Bass Boost" thing going on if I slid the 80Hz slider up too far.