Is there a difference in sound quality between the two lines or is it only a weight difference? It would be nice to have a 21 pound amp, but the cost difference just doesnt justify it. Also, if anyone has played an EBS 410 cab, how does it sound? I'd also appreciate a comparison to a Berg 322. I build my own basses and would like to preserve their natural tone in my sound. I haven't heard much about the EBS on here, but it seems like an excellent cab. Lastly, how does the demeter VTBP-201s compare to the Alembic F-1X? Which one does the best job of keeping the tone of the bass?