I opened this thing up full throttle unattenuated today, then with channel volumes around 5 for some dirty old country blues. Sounded pretty sweet with a harmonic tremolo and analog delay. I'm surprised at how not so loud it is with the E34L's, just my same experience with the DSL50. I'm willing to bet that it would be much louder with the winged C's in it. I will try them in it eventually. But jumping from the DSL50 with the winged C's in it now and the E34L's in the Plexi 51, the DSL50 is significantly louder. I mean, the Plexi 51 is loud but not disturbingly so right now as the DSL50 can get with those winged C's. Not like that day when a guy from the block behind me came crying that he couldn't hear his tv. The bass on the Plexi 51 is pretty huge and fat though with the bass channel up around the same as the treble channel. It gets way too fat above around 2 on the bass knob when running like that. Thinking about attenuators, I really need to get around to building one of JohnH's from the diy thread. I bet I would like that thing more than my Weber.