Thunderbolt audio interface series focusrite clarett design external interface thunderbolt max sample rate 192 khz bitrate 24 bit connections headphone 2x instrument analogue outputs 8 x balanced 635mm trs jack 2 x 635mm stereo headphone outputs digital inputs 1 x adat digital outputs 1 x spdif coaxial midi connectors 1 x midi in 1 x midi out phantom power