So, after 90+ hours of loud music through the V30, it doesn't sound much different with the DSL20. I was noticing as the days went by that the iPod music was starting to sound warmer and not as spikey. Which made me hopeful for the final test of hooking up the Marshall. I have a feeling it may be the amp, though. Someone in this thread mentioned that they too have to watch the treble and presence knobs. I also just got through watching an Anderton's sound like video where they used the new DSL20. They commented that the gain channel was too fizzy and that they were disappointed because in the early days of "Sound like" videos, they'd use the DSL to stay within budget and loved the old version. Think it may be time to swap out heads instead of swapping out speakers. I've played V30's my whole life and never had a problem (Bogner 2x12, Mesa 2x12 and Marshall 4x12). So, common denominator would seem to be V30 is good...amp is not (at least not my cup of tea). Now, off to find replacement.