Recently I've rehearsed a couple of times with a JCM 900 and I just played a gig using an SLX. Both pretty good sounding amps but had the same issue with both of them - an excess of treble. I had to turn the treble and presence to zero and work from there to get a usable tone. I've just watched a demo of the new DSL 40w combo. Sounded good but I noticed that the treble was at zero.
Is this common to all 'modern' Marshalls ?