I've read the previous threads on Clarus and various cabinets, but there's an angle that I haven't seen covered regarding impedances of the cabinets. I'm looking for a lightweight cabinet for the Clarus, and am considering the Acme B1 or Euphonic CxL-110. From what I've read, they may have broadly similar sound characteristics (flat, "hi-fi"). My question regards relative loudness. I have seen suggestions that the Acme is power inefficient relative to other bass cabinets, although there's a discussion at http://www.acmebass.com/ about whether this is true that I don't understand. However, the Acme is available in 4 Ohms, into which the Clarus 300IA can deliver 200 Watts, whereas the Euphonic is only available in 8 Ohms, into which the same Clarus can only deliver 120 Watts. So it would seem to me (an electronics ingenou), that broadly speaking if the Acme has more than 60% of the efficiency of the Euphonic, it's going to be louder. Plus I have a concern that with Clarus+Euphonic, I'd be delivering 120 Watts max into a cabinet rated at 350 Watts (which may be a bad thing for clipping etc), whereas with Clarus + Acme 1B I'd be delivering 200 Watts max into a cabinet rated at 175 Watts, which may be a good thing. I know that all the above is RMS, and that peaks will be a different story, and that the only way to really find out what works is to try it. But since the Acme is only available directly from the manufacturer, I'm trying to gather enough info to decide whether it's worth buying it in order to try it out. So even if no-one in the forum has actually tried the Acme, I'd appreciate comments on whether my reasoning about the relative volume issue is correct. Also, if the above reasoning is correct, it raises the question of whether there is another "hi-fi" URB-friendly 10" (or even 12") lightweight cabinet on the market with impedance of 4 Ohms, apart from the Acme?? Thanks for your help!