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While I do love Petrucci's playing, I suppose it's more that him and I see eye to eye when it comes to designing a guitar. If it didn't have his name on it, I'd still buy one. That neck. O my, that neck.

Looking for a Short head shell that will fit my Mark IV. Currently it's a rackmount and I'd love to get into a head shell. Thanks!

I know exactly what you mean. I have a 1990 example, and it does the exact same things. It's broke, and now I'm anxious to hear what a tune up can do.

Thanks for the reply. I guess I'm thinking of PC's and motherboards and how if I were to pull a capacitor off that, that would be considered 'done'. lol Yeah, I def made sure not to plug it in or anything.

The top cover of my Mark IV rackmount wasn't securely fastened (stupid me) and managed to knock off a capacitor on the actual PCB in the chassis of the Amp. I'm not sure what having a PCB board means in this situation, but please don't tell me my amp is done for? Can a technician solder that...

Yes sir, your post is exactly why I want to experiment with tubes! I love the way my Mark IV sounds, but I can't help but wonder if its possible to improve it. When you say vintage ones, do you mean NOS?

Hey, I'm thinking about swapping some tubes and wonder, if I want to run 6L6's + EL34's in Simul-class, would it be safe to use any 6L6 or EL34? Thanks!

I see. I think I know what you mean regarding a million different things, and that's what I was afraid of. :lol: I was thinking of just buying a new set of tubes first, switching them out and seeing if the problem goes away. Would anyone recommend I do that first before seeking a tech? I've...

Hey all, I have a '92 Mark IV A Rackmount that I love, however it seems to have a loud, constant hum. Thing is, the severity of the noise is intermittent, I'll have some days where the noise is bearable and others where the noise sounds like a pack of helicopters near by. I'd like to get this...

I had a Single Recto, which I sold for a Dual Rectifier 3-channel, and went through the exact same thing you're going through. It did the recto sound alright, but it wasn't tight enough, wasn't articulate enough, all flab, etc. I tried boosting it. I got a Digitech Bad Monkey (great...

Take it back and show guitar center. Have them take out another triple recto and see if its just as noisy. That might be your best bet, as most guitar centers around hardly ever have the roadster in stock.

Lucky bum. :) Congrats, though.

I've read somewhere that the tones off that era - The Colour and the Shape/soundtrack clips, were from a early 90's Mesa Dual Rectifer 2-channel.

I'm not exactly sure, but I assume it has to do with different bias adjustments with the inside and outside pairs of the power tubes. Bob from eurotubes says that the inside tube sockets are puposely biased colder than the outside sockets, which facilitate the use of 6L6's in the inside...

You can also tell by the cabinet material. The 'B' Models have that smoother, 'black taunus (or taurus) vinyl'. The A's used to have that grainier, plastic looking vinyl.

When you're buying guitar amplifiers in this range, as in, professional levels, it's generally agreed that loudness or 'volume' level DOES NOT make one amp better than the other. You buy the amp based on your needs and wants when it comes to tone. As other posters have mentioned, its more the...

Yea it does. You instantly hear a noticeable upper mid-shift in tone, characteristic of EL34/Marshall amps, a change from the 'heavier' low-mid accentuation of the 6L6/Recitifer/Fender amps. I LOVE the Mk IV because it lets me run both tubes, which I do. I love the upper-mid shift of the 34's...

My response? Do it. Get it. It's Mesa, and I doubt you would be disappointed. Also what kind of guitar did you use to try it out? What type of pickups?

I just received my full retube kit from Bob at Eurotubes. Got the 6L6/E34L combo with the high gain preamp. Put it in today at practice and all I could say is 'wow'. The traditional Mark tightness, dynamics and feel seemed to be magnified two fold, and the E34L/6L6 combo definitely adds that...

Yeah, which store is it? I'm in the Queens/LI area, but going upstate this weekend - maybe I'll pass by...