
Four channels of switchable microphone and/or line-level analog audio input with 48 V phantom power.

| DESCRIPTION | Four channels of microphone / line-level analog audio input with 48V phantom power and high performance pre-amplifiers and A/D converters |
| PERFORMANCE | |
| Dynamic Range Unweighted | > 112 dB |
| Dynamic Range A-weighted | > 115 dB |
| Distortion 20 Hz–20 kHz +4 dBu (nominal input) | < 0.004% THD+N |
| Distortion 20 Hz–20 kHz 2 dB below clip (max) | < 0.06% THD+N |
| Crosstalk 20 Hz - 20 kHz | |
| Inter-channel (max) | > 110 dB |
| Inter-channel (typ) | > 110 dB |
| Intra-channel (max) | > 110 dB |
| Intra-channel (typ) | > 110 dB |
| Frequency Response 20 Hz–20 kHz (max) | ± 0.5 dB |
| Frequency Response 20 Hz–20 kHz (typ) | ± 0.2 dB |
| Input Impedance Balanced (nominal) | 10 kΩ |
| Input Impedance Unbalanced (nominal) | 10 kΩ |
| Common Mode Rejection 20 Hz–20 kHz (max) | > 45 dB |
| Common Mode Rejection 20 Hz–20 kHz (typ) | > 50 dB |
| Max Input Level | 1.23 to 17.35 Vrms, -56 to 27 dBu, 58.2 to 24.8 dBv, (continuously variable) |
| Mute | Infinite attenuation (via digital mute) |
| AUDIO CONVERTERS | |
| Analog to Digital Conversion (ADCs) | 24-bit delta-sigma at 48 or 96 kHz sample rate |
| Group Delay | < 13 samples (≈ 271 μs) at 48 kHz |
| CONNECTORS | Four 3-terminal Euro-style detachable terminal blocks |
| USER CONFIGURABLE OPTIONS (software enabled) | |
| Phantom Power | +48 V phantom power (meets IEC 1938 [1996] spec) |