Hey folks! Have any of you ever used the Marshall JMP-1 preamp? I've been kind of itching to have a Marshall sound to play with but my old JCM-800 wasn't convenient to drag around to gigs. Now that I'm using the MC2100 and SMS preamp, adding a one space rack unit to the rig wouldn't be that inconvenient to drag around. I did a couple of theater pit gigs where I A/B'd the JCM and the Twin that was super cool (I got to leave it in place for two weeks) and I loved it. I was just wondering if they were any good. Thanks!