Used RME Fireface 802 in good working order and very good condition. Includes box, user guide, optical cable, and Driver CD. The RME Fireface is a powerful 60-Channel 192kHz USB and FireWire audio interface, featuring 4 high end preamps used on commercial recordings for their incredibly low noise and low distortion, and reference level converters to provide a perfectly clean recording ready for post processing. the outputs are high gain even for high impedance headphones, all 30 inputs and outputs can be used simultaneously and they all have 116dB of dynamic range. The list of pro level features in this interface go on and on, making it an excellent choice for a home or commercial studio that wants to expand their recording and I/O capabilities and quality. Features Resolution AD: 24 bit Signal to Noise ratio (SNR): 113 dB RMS unweighted, 116 dBA Frequency response @ 44.1 kHz, -0.1 dB: 5 Hz - 20.8 kHz Frequency response @ 96 kHz, -0.5 dB: 5 Hz - 45.8 kHz Frequency response @ 192 kHz, -1 dB: 5 Hz - 92 kHz THD: < -110 dB, < 0.00032 % THD+N: < -104 dB, < 0.00063 % Channel separation: > 110 dB Input: 6.3 mm TRS jack, electronically balanced Input sensitivity: 8 kOhm unbalanced, 12 kOhm balanced Input sensitivity switchable to Lo Gain, +4 dBu, -10 dBV Input level for 0 dBFS @ Lo Gain: +19 dBu Input level for 0 dBFS @ +4 dBu: +13 dBu DA - Stereo Monitor Output Phones (9-12) As DA, but: Output: 6.3 mm TRS stereo jack, unbalanced Maximum output level at 0 dBFS, High: +16.8 dBu Maximum output level at 0 dBFS, Low: +2 dBV Output impedance: 30 Ohm AES/EBU 2 x XLR, transformer-balanced, galvanically isolated, according to AES3-1992 Microphone In 9-12, front As AD, but: Input: XLR, electronically balanced Input impedance: 3.4 kOhm Signal to Noise ratio (SNR): 112 dB RMS unweighted, 116 dBA Gain range: 54 dB Maximum input level, Gain +6 dB: +10 dBu Instrument In 9-12, front As AD, but: Input: 6.3 mm TS jack, unbalanced Input impedance: 800 kOhm Signal to Noise ratio (SNR): 112 dB RMS unweighted, 115 dBA Maximum input level, Gain +6 dB: +21 dBu DA, Line Out 1-8, rear Dynamic range (DR): 115 dB RMS unweighted, 118 dBA Frequency response @ 44.1 kHz, -0.5 dB: 5 Hz - 20.8 kHz Frequency response @ 96 kHz, -0.5 dB: 5 Hz - 45 kHz Frequency response @ 192 kHz, -1 dB: 5 Hz - 89 kHz THD: -110 dB, < 0.00032 % THD+N: -104 dB, < 0.00063 % Channel separation: > 110 dB Output: 6.3 mm TRS jack, servo-balanced Output impedance: 75 Ohm Output level switchable Hi Gain, +4 dBu, -10 dBV Output level at 0 dBFS @ Hi Gain: +19 dBu Output level at 0 dBFS @ +4 dBu: +13 dBu Output level at 0 dBFS @ -10 dBV: +2 dBV ADAT Optical 2 x TOSLINK I/O, format according to Alesis specification Standard: 2 x 8 channels 24 bit, up to 48 kHz Double Speed (S/MUX): 2 x 4 channels 24 bit 96 kHz Quad Speed (S/MUX4): 2 x 2 channels 24 bit 192 kHz Quad Speed Windows USB: 1 x 2 channels 24 bit 192 kHz SPDIF optical (via ADAT2) 1 x optical, according to IEC 60958 Word Clock BNC, switchable termination