Today I traded in my DSL100H 100w EL34(non r model) towards the new EVH 5150 III 50w 6L6 head. it's the new 2018 build with the concentric volume and gain for green and blue channels. This amp screams, wow.. completely blows away the DSL (straight up). It's so quiet compared to the DSL, literally no hiss, and the switching is so fast, not even noticeable... crazy The Midi is 100% and WORKS 100% no issues, easily programmed and, the loop is ok, although there's a slight gap when engaging/disengaging, there is no volume discrepancy. Still using marshall 1960B cabs with G12T-75's. I have 3 of them and use one at home, one at the jam space and one for gigs. I'm completely blown away by the way this EVH amp interacts, it's so harmonic and rich sounding, absolutely beautiful. even at low volumes in my bsmt it's got that arena sound and tone. The amount of gain on tap is f'n incredible and it doesn't get mushy or thin. further, it takes the BE-OD into the green channel way cleaner and less scooped than the DSL did, and it's got unbelievable headroom... 50 watts... This is a killer amp, I recommend people to try these out in person! total beasts.