All I can go by is my intuitive judgement, in this case that I was able to get things working with less latency problems on the Quattro than with my old Audiophile card, one thing I found is with the USB device you circumvent the pci conflict issues, like my graphics card conflicting with the Audiophile to the point where I was totally unable to get clean playback or recording because of IRQ problems. I think I worked out my recording issue on the Quattro, seems like I need to use inputs 3&4, someday the driver will be more stable, as the performance on my crummy imac was very impressive, though 4 channel recording is limited to 16 bit, and I had to set latency to medium under osx, but the recording quality is very good, so as soon as I figure out how the alsa-usb driver is working with it I should be getting good recordings. On Wed, 28 May 2003, R Parker wrote: