Well, there's a LOT of "depends" in there.
I spent about 2 hours A/Bing the IV and the V this morning, with the guidance provided in the manual (page 16) on how to set a Mark V and IV identically. Verdict to follow after a few notes.
Granted, the tubes in my Mark IV are a mixed up lot - I didn't even check but I've had every tube under the sun in there and the ones that I left it with were basically the most open sounding tones I could get out of it.
Another consideration is that I have a short head Mark IV with 2 EV cabs, 1 open and one Theile. I wound up using the open back and went back and forth cross wiring the Mark IV into the V's combo C90 and the V into the EV 1x12. I switched back and forth about 3 times. I was playing with a Morley A/B/Y pedal with a mogami cable into it, and two george L 1/4 cables out to each amp of approximately equal length.
Also, keep in mind that the V has the gain set at 7.5, according to the manual, and that the V's "gain" pot is the equivalent of the IV's drive pot (which I was really happy about). This alone could explain a lot of the buzzyness that a lot of people describe - I think that's way too high a setting on a Mark IV for anyone to play the super hot active EMGs that so many headbangers are in love with. That said, I was playing with a '76 Yamaha SG2000 with Bill Lawrence L500L (not the XL so favoured by the late Dimebag Darell)
The final consideration is that now I can't hear.
The verdict - it's a Mark IV if you want it to be. I'm sure that you'd hear just as much variation between any two Mark IVs. I had them dialed in so close that I heard more difference based on my head position than anything else.
I *could* tell that my Mark IV wasn't quite as open sounding. It had a hair more nasal tone than the IV. This is a good thing for me. I highly doubt that anyone could really tell the difference in an live situation. This was really really hard to discern what with switching between the EV and the Celestion cabs, but it's there. I'm betting that this probably has more to do with my tubes than the circuit design.
Other things that I discovered is that so far I really like the C90 better than the EVs - but keep in mind that I'm not a metal player. The C90 seems to have a lot more detail in the mids, which really surprised me - it's more 3d. This could also be a factor of the wider body that it's in... but I liked my Mark IV much better into the C90.
Finally, the ONE thing that sounds WAY better than either of these amps - BOTH OF THEM TOGETHER! WOW - talk about THREE DEE!
Great - now I have to go back to work - I'm not going to hear anything on this con call except my tinnitus.
Dave
P.S. - I'll see if I can manage a recording of these two amps together. I would have rigged up the mics and taped my A/B, but I'm sufferingly some mighty hurtin pain with a tweaked out shoulder muscle. The number of trolls and A-holes on this board is another detraction...
fatbagg said:
Yea, the manual says it can do the mark IV sound to a T...but alot of users are popping up saying it doesnt, and that it fizzes QUICK!