Avid Pro Tools MTRX 2 Mic / Line AD, Plug-in Card, With two remote-controllable analogue microphone / line input channels for Avid MTRX base unit (art. 422725, not included), 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, 2 AD converter 24 Bit / 384 kHz, DSD samplerates 2.8224 and 5.6448 Mhz (64 and 128 fs), Input format 25-pin Sub-D connector, Requires one module slot of the base unit