Usb audio interface series tascam us design external interface usb 20 max sample rate 96 khz bitrate 24 bit connections 2x instrument headphone analogue outputs 1 x 635mm stereo headphone 1 x 35mm stereo headphone output 1 x rca stereo guitar input jack phantom power integrated dsp processor os requirements apple mavericks 1091 oder hher windows 7 oder hher ios 6 oder hher