thanks for the responses.
im just getting an upgrade itch and wonders if 685 will be an improvement. the 9.1 is good but i want to explore what im missing hence the inquiry. i'm into 80's indie, electronic (smiths, billy bragg, kraftwerk, etc.) and today's rock (killers, ting tings, etc) and some acoustics (jason mraz, edie brickell, fairground attractions).
auditioning is quite difficult coz i live in hong kong, most stores' set-up are amplified from av receiver so im afraid it wont do justice to the sound.
again, thanks for all the help.