Thanks MDV, i'll look into that. sounds good.
Dave, when i plugged in first it didn't sound like i expected. i was playing a 1969 Marshall amp a few times over the last while, and this is quite different. it's more 70's Marshall, harder edged and with more gain. once i adjusted though, it sounds great! and i don't have to demolish buildings with volume to get it! and the booster is excellent, although i preferred it with the level up and the gain down. all those 70's hard rock sounds are right there, just perfect. and the noise gate is brilliant. the reverb's even quite good! :) between this and the AFD, every Marshall tone from about 1970 to now is right there, and at any volume.