I've had two of these cabinets for eight months now and have had time to test them in more or less demanding performance situations. I play a custom Jazz-style bass through an Ampeg SVP preamp and one channel of a QSC PLX 3002 power amp into one B4 cabinet. For outdoors or large rooms I run one cabinet out of each channel of the amp. In rooms of various sizes with various acoustics I have been able to achieve studio quality tone virtually every time. This cabinet far exceeds anything I've used in 30+ years of constant gigging. They are relatively light and compact, built to last and they look good if that's important. Dealing with designer/builder Andy Lewis is a dream. This guy took the time to talk to me personally, and everything he said he would do, he did. And pronto. You can only buy them mail order, but Andy gives you a couple weeks to check them out, and if you don't like them (I can't imagine anyone not liking them( you send it back for a refund. The only way I will let loose of mine is if someone pries them from my lifeless hands. The cabinet comes in a 4 or 8-ohm version. Keep in mind that they are power hungry: I run 900 watts into mine and it sings. Absolutely no distortion, clipping or coloration, which may sound a bit weird for those who don't really like a flat response.

Construction	100%
Loudness	90%
Clarity	100%
Tone	100%
Size/Bulkiness	100%
Value	100%
Overall	100%