Trouble with Big Block 750

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Bottle Rocket
Posts: 1
Joined: Fri Oct 29, 2010 3:48 am

Trouble with Big Block 750

Post by noqnoq » Fri Oct 29, 2010 3:57 am


I bought a BB750 with a 2x12/4x10 cabs about 4 years ago, and in the time I think I've gotten about 6 hours play time out of it.

What generally happens is after 10 minutes the signal will become distorted and then generally fade out to nothing - even after leaving the head powered off for several hours there will be no signal. Note before this the tone is beautiful!

After leaving it alone for about a week I will again get about 10-15 minutes of playtime through it.

Basically I can't trust the head, any advice? Weird problem apparently, I haven't found any similar symptoms in my trawling of the net.

Btw I've had this in for repair twice now with the local distributors, was hoping you guys might have some leads before I take it in for the third time. I thought it might be a heat related problem as I have the head mounted in a rack case, but this beast will have to survive some sweaty stages (and my Hartke has managed in nearly 20 years without skipping a beat).

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Mark II
Posts: 130
Joined: Wed Sep 05, 2007 9:10 pm
Location: Pennsylvania

Re: Trouble with Big Block 750

Post by dmotisko » Sat Nov 13, 2010 6:47 pm

Nothing wrong with sending it back to Mesa to have it fixed !!!!
Stiletto Deuce Stage II
Stiletto 2X12 Cab
74' Telecaster Deluxe
07' American Stratocaster Deluxe
08' Custom Classic Strat
Xotic BB preamp, Hartman Germanium Fuzz - NKT275, Boss EQ-20 Advanced EQ, Boss RE-20 Space Echo, MXR Script Phase 90,

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