I received my new Tech 12" cabs on friday and took them along to our rehersal space the other day. My amp was at home so I plugged them into the PA to see how they sounded - fantastic. These are the older, and much more pleasing design, the company are now known as Tec Amp. They're very light and I'll find out on thurs. what they sound like in rehersal. Quick specs; The cab to the right is a very old (and very heavy) Carlsbro 4x12 that I've been using in the rehersal place for the last few months with a Peavey PA head. Sounded OK but was a bit wooly with the lower notes. Things are going to change........ D.