The Boogie Board

Discussion Forum for Mesa Boogie Products
It is currently Tue Apr 25, 2017 1:35 am

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Mon Jan 16, 2017 6:32 am 
Offline
Bottle Rocket

Joined: Sun Jan 15, 2017 8:37 pm
Posts: 2
Hey, Boogie Board;

I'm running a Mesa 50/50 Stereo from about the mid 80s, so it's logged some miles. I've had a problem for a while where I have to push the left side almost 3 notches higher then the right to balance my speakers, and over this last week started eliminating possibilities to track down the problem. I re-cabled my speaker cabs, installed all new valves—4 6L6s and 3 12AX7s—but still can't get it resolved. It's not an imbalance in my input signal, because when I have no signal going in—just connected to my patchbay—the natural hum of the amp has to be set at 7 on the weak side side to match 4 on the strong. I'm the original owner and the piece has never gone beyond my rack in the studio, so whatever it is, it's age related rather than road effect (arthritis? Alzheimers?).

Any suggestions for further diagnostics would be hugely appreciated.

Thanks.

Cayce


Top
 Profile  
 
PostPosted: Mon Jan 16, 2017 12:08 pm 
Offline
Donating Member

Joined: Wed Dec 22, 2010 2:57 pm
Posts: 289
Did you check your speaker cables and speakers? Make sure they are plugged in all the way, and try swapping sides.

_________________
Roadster, Mark IV, Traditional/ Stiletto 412
Gone: Quad MIDI Pre, TriAxis V1 & V2, Formula Pre, Simul-Class 2:NINETY, 20/20 Stereo
Great deals with: Prestige20, DMTransmutation, PaxMan, Forty6and2, jdurso
WTB: Modded MTS modules


Top
 Profile  
 
PostPosted: Tue Jan 17, 2017 6:37 am 
Offline
Bottle Rocket

Joined: Sun Jan 15, 2017 8:37 pm
Posts: 2
JMMP wrote:
Did you check your speaker cables and speakers?


Thanks, JMMP...

Yeah, as mentioned I re-cabled my speakers and have eliminated all connection related possibilities. I've switched sides and the problem stays consistent with the left output from the amp. It's definitely something internal. I'm hoping to get some 'most likely' components to begin checking and get it straightened out.

Thanks.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group