Yep, I have one. A MOTU and an issue.
It works as advertised on Win XP-32 bit.
On Win 7-64 bit it will not work thru the MAIN outputs. There seems to be a driver conflict with Win 7. The MAIN outs show up in Playback Devices as "MOTU MAIN OUTS (1 and 2)" and the Test feature makes sound but no sound is produced from Sonar or
Media Player. Headphone outs work fine.
After installing the updated drivers for it I now get sound from the MAIN outs, however, they appear in Playback Devices as "MOTU FW USB (5 and 6)"
or else they don't even show up at all. Yet there is sound.
I was on the
phone for an hour with MOTU but they have not been able to resolve the issue.
So far I believe their drivers are not fully Win 7-64 bit compatible, since it has no issues in Win XP-32 bit.
Steve