Mackie Onyx 1220 (FW400 into iMac FW800)
I recently purchased a Mackie Onyx 1220 mixer with Firewire interface card. When I plug this into my iMac (via 6-pin/9-pin cable), the Onyx shows up in the sound settings applet and is set as the default output device. But if I try to play any audio, or change any of the Onyx settings (e.g. bitrate), I get the spinning beachball. This usually persists until I unplug the Onyx, or sometimes I get the beachball forever and have to force shutdown.
I tried the Onyx on a MS Vista system (via 6-pin/4-pin cable) and it seemed to detect and work consistently .. so I believe the device itself is functional. The obvious differences would be the OS and the FW connection (400-400 vs 400-800). I tried installing the latest FW SDK drivers, but no change in results.
Anyone have suggestions on what to try next? Mackie's phone support didn't really have suggestions, other than not using the 400-800 cable (which isn't an option since my iMac only has the one FW800 port). I could return the Onyx and get something else, but would prefer that as a last resort (got it a great bargain).
thanks
iMac, Mac OS X (10.5.8), Intel Core 2 Duo 2.66 GHz, 4GB DDR3 1066 MHz