None of my local retailers carry these cabs as yet. I am curious to know if any TB'ers have tried (or bought) them yet. The sealed box design seems like it might be a bit fuller sounding in the low-mids and upper bass than the higher-priced RBH designs. In hi-fi land, sealed box speakers are known for their full bass response (at the expense of efficiency.) I play old-school fingerstyle r&b and like the B-15 sound, only lots louder. Interstingly, the B-15 was a sealed box, if I'm not mistaken.