Hello, I have just purchased one of these for just under £150 at a local music shop and I would like to know some info about it if possible.I've browsed around on the net and on the Gibson website which has got online manuals for it.It was a toss up beetween the GP12SMX and this model which apparently is the better out of the two as it's got valve drive/shaping and other things like midi input. What type of amp would be best for this type of pre-amp? I've only just started getting into trying out new gear as i've always stuck with the basic combo+cab route until now. I've currently got a 4x10 cab and a 15" Peavey Combo 115 which supports a cab output for another 100W or so.Is it at all possible to use this preamp through my Peavey combo and utilising the amp built inside it or would I have to buy another amp on top. Thanks.