forgot spec...handbuilt by martin at martamp
It’s basically a Marshall type preamp, with 2 x 6V6s instead of EL34s, so it gives about 20w instead of 50w.
It also has a mode switch, which reconfigures the preamp from “Plexi” (early JTM type preamp) to “Ali” (later JMP metal panel preamp). The Plexi mode does fantastic cleans, and a nice juicy, bluesy crunch. Ali mode tightens the bass for a better hard rock sound.
Pretty much as you would get with the difference between a JTM45 and a JMP50
...sweet