I thought you said the sub's were JBL products? Am I remembering incorrectly?
Enjoyed meeting you, and hearing your babies.
Nice meeting you and yes, you remembered correctly. Bottom line, I ran out of time, could not make/complete a current version of the M1 in time for the show. So I grabbed an old prototype/demo pair, battle scarred and all
, with the old JBL subs. The sound is near identical enough where it would be next to impossible to tell them apart. The new TB sub does seem to maintain its composure a bit better under duress (fairly high levels), looks slightly less gaudy and is a bit heavier, increasing the overall weight by a couple lbs.
Essentially, you heard the M1s.