Avid Pro Tools MTRX 8 Mic / Line AD, Expansion Card, Plug-in card with 8 remotely controllable analogue microphone / line input channels for Avid MTRX base unit (article no. 422725, not included in the delivery), Input gain adjustable from -18 to +70 dB in 0.1 dB steps, Equivalent input noise microphone preamplifier: < -133 dB(A), Input level adjustable from +9 to +30 dBu in 0.1 dB steps, THD+N (A): < - 117 dB at -3 dB FS / 0.00014 %, Crosstalk: < -120 dB, Input impedance: > 10 kOhm, 8 AD-converter 24 Bit / 384 kHz, DSD sample rates 2.8224 and 5.6448 Mhz (64 and 128 fs), Inputs via 25-pin sub-D connector, Occupies one module slot in the base unit