Couldn't be anything else really given the bottom edge
So, my rig is getting there. I did end up getting rid of my Rectifier as it was collecting dust since i modded my JVM (i honestly never saw myself sacking off rectifiers in favour for a Marshall, but here we are...). I felt the money would be better spent on gear I actually need and that would be useful to have. Get a really functional and awesome rig once and for all, rather than tap-dance my way through a set (hence the GSP1101 and foot controller, etc)
Just missing a 1U power amp now, which is on its way (I snagged a filthy cheap Rocktron Velocity 300, as it's in need of repair)
For live use I'm only intending to use the GSP1101 for FX, with the JVM as my amp. The JMP-1 + Rocktron will be there simply as a back-up amplifier, should the JVM shit the bed.
But for recording, the JMP-1 into the JVM's power amp is SUCH a sick lead tone.
Rhythms are JVM, solo is JMP-1 into the JVM's power amp.
The JMP-1 on the whole is really nothing special. It's basically a rack-mounted 8100. Very similar tone, feel, and circuit. It was also released the same year, so it's definitely got that Valvestate series DNA. I've had a ton of early 90's Valvestate stuff, both personally and from customers to repair, and it had that instantly recognisable feel and tone.
Contrary to most other Marshalls though (and amps in general) OD1 is a more aggressive and percussive voiced overdrive channel, where as OD2 is the more squishy and mid-rangey, although definitely with more gain on tap (OD1 still has more than enough for a good metal rhythm tone though, especially when boosted).
Even when using the JVM's power amp, flicking between the JMP-1, and then going back through the front of the JVM (so using the JVM wholesale), you can really feel/hear that this is a very static, solid state, kinda meh sounding amp, and the JVM eats it alive with that all-valve roar and grain. But, that's not to say the tones aren't awesome, and that it's not a lot of fun. Perfect for leads for that reason. It's got that 80's tight squish to it, which sits it in a mix (or rather, lets it sit on TOP of a mix, like a good solo should!)