AMP FAIL ! :(

[Shredragrammaton]

Argh !!!!


So my setup is working fine , i move it upstairs to a different room , rebuild , and its humming BAD. Tried different wall sockets , switched off all other appliances , not interference based. Tried a few guitars , not guitar fault.

Setup is charvel > isp decimator > ada mp1 3tm > g major > mesa 290 > mesa recto 2x12.

The decimator has always been set at midnight , providing perfect noise supression for higain patches. now with this extra humming i gotta turn it way up , no sustain.

The symptoms are weird too , its like my rig isnt earthed or is live or something ; when i touch the strings the hum quietens a little , if i touch the rack case surround or rack screws it also affects the hum - ive no idea what it could be , been working at it for 4 hours , HELP !

[jb4674]

Go buy a HumX and see if it resolves the problem.

Jimmy

[HeavyMetal4Ever]

Could it be a problem with the wiring in that room?

Maybe try running some extension leads from another room?

Good luck.

Rock on!

[Silverburst]

Might sound stupid but you checked all cables on the back ? maybe there is a cable the has been pulled out some mm's.

Have you tried separate units on their own trough the 290 ? Or even your guitar in the 290 to isolate the humming bird ?

[smooth55]

I'm guessing it's the wiring to that room but I'll second the suggestions from Pmike to try each thing individually and if there's any difference.