Disgruntlement is boiling in the Bose user forum. Some users have now stated that even the big Soundtouch SA-5 system with a separated amplifier has got the same delay problem via aux-in. Some wanted to use it within their DJ setup and found they heard their monitoring as an echo with delay. And the Bose support center wasn't even aware of this delay.

I'd like to know why Bose obviously developed such an extreme amount of digital signal processing that it takes 500 milliseconds to process the input signal... The Sounddock 10 did a great job without these shenanigans.