I bought your EV 2x15 from you some years ago. It was a B215 not a B2150. I didn't realize there was a difference back then, since they look very similar to each other, but they are very different cabs. Not sure exactly the difference in cab size but the 2150 was deeper IIRC..... All I know is the B215 sounded anemic compared to the B2150. I sold the B215 not long after I got it from you. Wasn't any where near as smooth, fat, and round sounding as the B2150, Don't know about the TL606, no experience with those. YMMV