> when i write to /dev/dsp1 my system crashes instantly! > i have some i2c stuff and dmasound stuff loaded! could this be the reson? Try getting things to work without the usb-hotplugging stuff first (try warm booting to linux from osx with the speakers plugged in), in my experience the usb-hotplug stuff is totally unstable, it causes a kernel panic almost every time I try to unload (unplug) my usb midi adapter. -Brett