i also got mine a few weeks ago around august 8th

on a side note...

once i get some cash i'll be changing the V1 and V3 tubes to mullard 12ax7's and the V2 to a tungsol. if i decide to change the power tubes i'd go with winged SED's.

right now its got all JJ's and they seem pretty cheap.


I need some cash so if anyone is interested in a 1974 Marshall JMP check the classified section or PM me thanks

thanks everyone my ots is the updated one so the snubber caps are already 330pf, but im thinking about going a little bit higher

this is the sound im sort of going for

i really want a smoother sound out of my overtone on the cleans and especially on the overdrive.
i'm using a G&L S-500 (strat) and a 4x12 with celestion 25 watt greenbacks. also there a little more highend than i want but i think if it was smoother it wouldnt bother me as much.

Anytips would be usefull

thanks,
JD

i play gigs, pretty large ones, and my two main amps are a 1982 50 watt hiwatt and ceriatone OTS(50watt). with my hiwatt i've never gone above 9 oclock with the ots usually around 4 or 5 (about 11 oclock) they are both plenty loud but those marshalls are meant to be pushed loud. maybe your eq or speakers are the problem. i play with alot of mids which helps cut through

i didnt fix the problem yet i just run it infront of the amp instead of the FX loop for now. the sonic maximizer sounds really good on the clean channel but it changes your OD alot, you would have to see if you like it yourself

the problem seems to have gone away. but thanks for your help everyone

i was having the same problem running a bbe sonic maximizer through the FX loop

i changed the V1 and V3 tubes with no differnce in the problem

My overtone seems to be acting up. when i strum a chord i get a bad unmusical distortion, the harder i strum the worse it gets.
It happens mostly on the clean channel the OD is affect as much but there is some dregrading of the sound

IC racer where did you get the D*mble faceplate

PAB= preamp boost. it bypasses the tone controls for a boost

Is there anyway to setup your amp or modify it to get more of a boost from the PAB and also get a darker fatter tone

Im selling a 1974 Marshall JMP 100 watt if your interested

Im selling my 1974 Marshall JMP.
I just retubed with a nice set of 6550 powertubes and it sounds great.
It has an added master volume and also a boost which is activated by a footswitch.
This amp has balls.
Its a four input amp normal and bright channels high and low sensitivity.

Post any questions

Asking $1400 but willing to do trades too







Thanks,
JD