Digital Audio Interface Specifications 48kHz sampling rate unless otherwise stated Mic Inputs (A/D) Input Impedance 2.7k Ohms unbalanced, 5.4k Ohms balanced Maximum Input Level from +24dBu @ min gain, pad on to -40dBu @ max gain, no pad Channel-to-Channel Crosstalk < -110dB SNR -101dB, A-weighted Dynamic Range 101dB, A-weighted THD+N 0.005% (-86dB) @ -1dBFS, 1kHz Frequency Response 20Hz to 20kHz, +/- 0.1dB Pre-amp Gain >40dB Pad -20dB pad Instrument Inputs (A/D) Input Impedance >220k Ohm, unbalanced Maximum Input Level From +22dBV @ min gain, pad on to -42dBV @ max gain no pad SNR -100dB, A-weighted Dynamic Range 100dB, A-weighted THD+N 0.005% (-86dB) @ -1dBFS, 1kHz Frequency Response 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample rate Pre-amp Gain >40dB Pad -20dB pad Line Inputs (A/D) Input Impedance 20k Ohms balanced and unbalanced Maximum Input Level +4.1dBu balanced, +1.9dBV unbalanced Channel-to-Channel Crosstalk < -110dB SNR -101dB, A-weighted Dynamic Range 101dB, A-weighted THD+N 0.005% (-86dB) @ -1dBFS, 1kHz Frequency Response 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample rate 20Hz to 40kHz, +/- 0.1dB @ 96kHz sample rate Pad -20dB pad Input Inserts (analog) Maximum Level Send +6dBV, unbalanced Maximum Level Return +6dBV, unbalanced THD+N 0.00281% (-91dB) @ -1dB from max level, 1kHz Frequency Response 20Hz to 40kHz, +/- 0.1dB Line Outputs (D/A) Output Impedance 150 Ohms unbalanced, 300 Ohms balanced Maximum Output Level +1.8dBV, unbalanced +10.1dBu, balanced Channel-to-Channel Crosstalk < -108dB SNR -103dB, A-weighted Dynamic Range 103dB, A-weighted THD+N 0.005% (-86dB) @ -1dBFS, 1kHz Frequency Response 20Hz to 20kHz, +/- 0.3dB @ 48kHz sample rate Headphone Output (D/A) Maximum Output -2.5dBV at THD < 0.05% into 32 ohms Working Range 32 to 600 ohms   I/O Bit Depth Sample Rate (kHz) With Drivers 4 x 4 16 44.1/48 2 x 4 24 44.1/48 2-in OR 2-out 24 88.2/96 Class compliant 2x4 16 44.1/48