Hey guys. First post. Glad to be on board.

I recently bought a set of RT 12's a a secondaty HT system upstairs.

I replaced the black tweeter ( SL5000) with the tri-laminiate (SL6001).

I haven't noticed a "huge" difference, I do need to listen some more to them.

Do tweeter like drivers need to be "broken in"

To my knowledge only the RT16's came with the tri-laminites.

Thanks for the advice !!!