Look, I am just trying to make this device work in Linux. I apologize, but my "normal" setup has never included playback on the recording device -- so that was not a priority in testing the R16, or even on my radar. Obviously, the R16 is low end device that has no clock sync ability whatsoever. It is never going to be perfect, but I haven't noticed enough drift to be noticeable in a week or two of recording and overdubbing with it. Perhaps cheap crystals have gotten better and perform reasonably consistently... perhaps I am just a lucky guy. Regardless, I hope to have it working in full duplex soon. That aside, the generalization that multiple devices can't work is incorrect. There are many devices with hardware sync options... mine happen to use ADAT optical cables to do the job. Even those old soundblasters (or whatever they were) had physical sync cables. It remains a standard on higher end equipment. Back to the topic at hand -- I will try to modify the quirk to support full duplex. Stay tuned. -- View this message in context: http://linux-audio.4202.n7.nabble.com/re-Zoom-R16-tp87487p87951.html Sent from the linux-audio-user mailing list archive at Nabble.com. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user