Analog inputs - unbalanced, balanced, CUE, talkback mic (additional balanced input available on the m905 Analog) Digital inputs - 2x AES3 (Single or dual-wire), 1 S/PDIF, 1 TOSLINK, ADAT (selectable in 4 pairs, or 2 pairs in S/MUX), USB, DSD128 (5.6448MHz) Audio circuitry designed for completely transparent and musical playback performance Asynchronous Class 2 USB playback supports up to 24 bit/192kHz Mastering quality DAC circuitry with configurable de-emphasis filtering s-lock dual-stage Phase Lock Loop for ultra low jitter clock regeneration Hybrid RCU with hardware switches, large level encoder and graphical LCD LCD display shows input, level, output, SPL and DAC status plus a full calibration menu RCU includes built in microphone for talkback and onboard SPL meter SPL meter features include level, peak, fast and slow modes, A and C weighting Precision .5 dB step level control for speakers and headphones Reference headphone amplifier circuitry, with outputs on both the RCU and ACU Dedicated mono, dim, mute and sub mute switches Mono mode can be set to L R summed, L only in both channels, or R only in both channels L solo, R solo, L-R and sub solo modes are available 3 available stereo speaker outputs, with two assignable mono sub outputs (or single stereo sub output) Multi-mode SUB/ DAC/ METER out SUB out mode for stereo or multiple mono subwoofer outputs DAC out mode for a fixed DAC output fed by the selected digital input METER out mode fed by selected input signal (digital or analog), configurable with a fixed level or to follow yhe monitor level Detachable RCU tilt base