I've been using a 102i interface with a Tascam Dyna 8p mic preamp connected via the s/mux ADAT port. i wanted more channels, so i upgraded to the 208i, since it also offers an additional ADAT port. I acquired a Behringer ADA8200 mic pre with ADAT, hoping i could expand my 12 channels to 20. In THEORY, this should work, but after spending a couple hours trying, I had to go down the Google rabbit hole, and found my way here. The Tascam software SEEMS to properly detect it, but maybe I'm wrong. the documentation seems to assume you wouldn't DARE use any other brand, so it doesn't address my following issue. the Dyna 8p on Optical A is auto detected, the ADA 8200 on Optical B is manually set to 44.1KHz, but the 'standby' light is flashing, and the software says unlocked or no signal detected, and nothing I plug into the Behringer can be heard, despite the level meter indicating SOMETHING is happening. has anyone ever successfully used a non-Tascam ADAT device with their 208i interface, and if so, HOW? the 12 channels i get between the 208i and Dyna 8p are great, zero complaints about the interface or overall experience...i just can't get this other piece of gear to play nice (and a 2nd Dyna 8p is about $500 because it looks like they're being phased out) any thoughts?