Marshall Amp Forum - View Single Post

Doomhawk · 10-30-2008, 05:23 PM

the made them in the 70's as well. if it is a jmp with 2 inputs its master volume. the pre amp knob is your gain. the volume is well...volume. hope this helps. both amps are completely awesome by the way. which ever one you get if you decide on one, will be a great amp and a good investment.

10-30-2008, 05:23 PM	#21 (permalink)
Doomhawk Senior Member Join Date: Aug 2008 Location: New York Posts: 151	Re: Jcm 800 Vs. Jmp the made them in the 70's as well. if it is a jmp with 2 inputs its master volume. the pre amp knob is your gain. the volume is well...volume. hope this helps. both amps are completely awesome by the way. which ever one you get if you decide on one, will be a great amp and a good investment.