On your Marshall JVM On 0D2 (orange mode) Turn your volume channel knob all the way up (10). Turn your mid all the way up. Turn your (resodence) all the way up And turn your master control knob to preferred Volume level.. The amp will not sound compressed any more.. It will kick the h*** out of any Marshall doing this.. And I don't care if it's a plexi, 800, slx 900 The Marshall JVM clean and dirty is the best Amp they ever made in my opinion.. I hope you like this Go to : Johan Segeborn (Marshall Jvm sound like a plexi)