Four years ago the Babyface Pro again demonstrated RMEs absolute commitment to superior craftsmanship, not only in audio circuits and driver development, but also in mechanics. Created with the highest precision from a block of aluminum, this high-end portable interface incorporated newly designed analog and digital circuits. Its innovative energy saving technologies provided supreme fidelity with no compromises in level, noise or distortion.Main Features:+19 / +4 dBu switch on the bottom adds a direct way to reduce the output level, thus improves SNR for sensitive active monitors, avoids distortion / overload, and helps to keep TotalMix FX faders near 0 dB instead of high attenuations.Full SteadyClock FS circuit as in the ADI-2 Pro FS for lowest jitter and highest jitter immunity.3.5 mm TRS phones output power rises from 70 mW to 90 mW. THD of both phones outputs improved by up to 10 dB. Uses same output op-amps as ADI-2 Pro now. Output impedance of 3.5 mm TRS lowered from 2 Ohms to 0.1 Ohms.Mic inputs SNR improved from 112.2 dB to 113.7 dB, TRS Line inputs SNR improved from 114 dB to 116.3 dB (120 dBA). THD Line inputs improved by 8 dB.6 samples less latency on the AD side by new ADC (5 samples AD, 7 samples DA. It won’t get quicker…).All the above improvements were achieved without raising the units power consumption.K-slot for theft protection.Specifications:ANALOG:AD, Microphone/Line 1-2:Input: XLR, electronically balancedInput impedance balanced: 2 kOhm, 5.2 kOhm with PADInput impedance unbalanced: 1 kOhm, 2.6 kOhm with PADSignal to Noise ratio (SNR): 113,7 dB RMS unweighted, 117 dBAFrequency response @ 44.1 kHz, -0.1 dB: 18 Hz 20.8 kHzFrequency response @ 96 kHz, -0.5 dB: 7 Hz 45.8 kHzFrequency response @ 192 kHz, -1 dB: 5 Hz 88 kHzWith PAD active : -0.1 dB 8 Hz, -0.5 dB < 4 Hz, -1 dB < 3 HzTHD: < -112 dB, < 0.00024 %THD+N: < -108 dB, < 0.00035 %THD @ 30 dB Gain: < -115 dB, < 0.00016 %THD+N @ 30 dB Gain: < -100 dB, < 0.001 %Channel separation: > 110 dBGain range: -11 dB up to +65 dBMaximum input level XLR, Gain 0 dB: +8 dBu, PAD +19 dBuMaximum input level XLR, Gain 65 dB: -57 dBu, PAD -46 dBuAD, LINE/INSTRUMENT IN 3-4 (As Microphone/Line 1-2, but:)Input: 6.3 mm TS jack, unbalancedInput impedance: 1 MOhmSignal to Noise ratio (SNR): 116 dB RMS unweighted, 120 dBAFrequency response @ 44.1 kHz, -0.1 dB: 5 Hz 20.8 kHzFrequency response @ 96 kHz, -0.5 dB: < 3 Hz 45.8 kHzFrequency response @ 192 kHz, -1 dB: < 2 Hz 92 kHzMaximum input level @+4 dBu, Gain 0 dB: +13 dBuMaximum input level @-10 dBV, Gain 9 dB: -5 dBuDA, Line Out 1-2:Dynamic range (DR): 115 dB RMS unweighted, 118 dBAFrequency response @ 44.1 kHz, -0.5 dB: 0 Hz 20.8 kHzFrequency response @ 96 kHz, -0.5 dB: 0 Hz 45 kHzFrequency response @ 192 kHz, -1 dB: 0 Hz - 89 kHzTHD: - 106 dB, 0.0005 %THD+N: -102 dB, 0.0008 %Channel separation: > 110 dBOutput: XLR balancedOutput impedance: 300 Ohm balanced, 150 Ohm unbalancedOutput level @ 0 dBFS: Balanced +19 / +4 dBu, unbalanced +13 / +7 dBuDC @ 0 dBFS: 6.35mm 4.8 V, 3.5mm 2.4 V, XLR bal. 9.6 VDA, PHONES 3/4 (AS DA Line Out, but:)Output: 6.3 mm TRS jack, unbalancedOutput impedance: 10 OhmOutput level at 0 dBFS, 1 kOhm load: +13 dBuMax power @ 0.1% THD: 60 mWSignal to Noise ratio (SNR): 114.8 dB RMS unweighted, 118 dBANoise level: -101.8 dBuOutput: 3.5 mm TRS jack, unbalancedOutput impedance: 0.1 OhmOutput level at 0 dBFS, 1 kOhm load: +7 dBuMax power @ 0.1% THD: 90 mWSignal to Noise ratio (SNR): 114 dB RMS unweighted, 117 dBANoise level: -107 dBuMIDI:1 x MIDI I/O via breakout cable with 2 x 5-pin DIN jacksGalvanically isolated by optocoupled inputHi-speed mode: Jitter and response time typically below 1 msSeparate 128 byte FIFOs for input and output 25.3DIGITAL:Clocks: Internal, ADAT In, SPDIF InJitter suppression of external clocks: > 50 dB (2.4 kHz)Effective clock jitter influence on AD and DA conversion: near zeroPLL ensures zero dropout, even at more than 100 ns jitterDigital Bitclock PLL for trouble-free varispeed ADAT operationSupported sample rates: 28 kHz up to 200 kHzDIGITAL INPUTS:ADAT Optical:1 x TOSLINKStandard: 8 channels 24 bit, up to 48 kHzDouble Speed (S/MUX): 4 channels 24 bit 96 kHzQuad Speed (S/MUX4) : 2 channels 24 bit 192 kHzBitclock PLL ensures perfect synchronisation even in varispeed operationLock Range: 31.5 kHz 50 kHzJitter suppression: > 50 dB (2.4 kHz)SPDIF optical:1 x optical, according to IEC 60958Accepts Consumer and Professional formatLock Range: 27 kHz 200 kHzJitter suppression: > 50 dB (2.4 kHz)DIGITAL OUTPUTS:ADAT optical:1 x TOSLINKStandard: 8 channels 24 bit, up to 48 kHzDouble Speed (S/MUX): 4 channels 24 bit 96 kHzQuad Speed (S/MUX4) : 2 channels 24 bit 192 kHzSPDIF optical:1 x optical, according to IEC 60958Format Consumer (SPDIF) according to IEC 60958Sample rate 28 kHz up to 200 kHzGENERAL:Power supply: USB bus power or external power supplyIdle power consumption: 2.8 WattsTypical power consumption: 3.7 WattsMax. power consumption: 5.4 WattsCurrent at 5 V bus power operation: 700 mA (3.7 Watts)Current at 12 V external power: 313 mA (3.7 Watts)Dimensions (WxHxD): 108 x 35 x 181 mm (4.25″ x 1.4″ x 7.1″)Weight: 680 g ( 1.5 lbs)Temperature range: +5 up to +50 Celsius (41 F up to 122F)Relative humidity: < 75%, non condensing