finding the noise source

[dmcguitar]

Not sure where to post this but does anyone know how to go about finding what is causing interference / noise in my rig? I have a house with old electric ~1950 (grounded though) and noticed when i got my mark v (many months ago) that it was much more noisy than my 5150II. i have a variety of guitars and some are worse than others (notably the sincel EVH frankenstein pickup, which was really quiet with the 5150). so i play both amps in the same room out of the same outlet and there is a big difference in the noise floor.

There is nothing in the room except for a lamp and my guitar equipment, which is direct guitar into amp right now. I usually sit in the center of the room on a wheely chair and as i spin around or place the guitar at a different angle the noise gets better or worse. as you all my realize it's hard to sit perfectly still while playing guitar.

any ideas on how to figure out why this is so noisy?

thanks

 

[Ploki]

cascading gain design probably brings up the noise a tad more than on your 5150...
shouldnt make such a difference though
and if the noise floor changes as you spin around its probably something from the outside - in which case you are pretty much ******. electric guitar pickups are conductors and if you amplify them enough they bring up all the crud around. and a boogie gained up amplifies them plenty.

 

[screamingdaisy]

My Mark V is noisier than my Recto. In my case it's because I can run the gain way higher on the Mark V than I can on the Recto without getting mush. I figure it goes with the territory.

 

[eudaimonia02912]

FWIW: On my highest gain setting on channel 3, when I am using a Tubescreamer as a boost, I run an ISP decimator in front of the amp, set at -40 dB. Unboosted I can run it lower. So, if you've got a noise suppressor handy, you can compare your noise to mine to some degree and decide if it's abnormal.

 

[boogieman60]

If you are playing home, try switching to 45 watt mode. Cuts the noise way down. Still can get great sound. I only use 90 watt mode for really big rooms , and playing with the band. Then you can't hear the noise anyway. :lol: