Solid State Logic SSL 12 USB Audio Interface - Manual (Page 36)

Gain Range 62 dB
EIN (A-weighted) -130.5 dBu
Max Input Level +6.5 dBu
Input impedance 1.2 kΩ
Line Inputs
Frequency Response 20Hz - 20kHz unweighted +/-0.1 dB
Dynamic Range (A-weighted) 111.5 dB
THD+N (-1dBFS) (@1kHz) 0.0005%
Gain Range 17.5 dB
Max Input Level +24.1 dBu
Input Impedance 15 kΩ
Instrument Inputs
Frequency Response 20Hz - 20kHz +/-0.1dB
Dynamic Range (A-weighted) 110.5 dB
THD+N (-8dBFS) (@1kHz) 0.0015%
Gain Range 62 dB
Max Input Level +14 dBu
Input Impedance 1 MΩ
Balanced Outputs (Out 1&2 and 3&4)
Frequency Response 20Hz - 20kHz +/-0.05 dB
Dynamic range (A-weighted) >120 dB
THD+N (-1dBFS) (@1kHz) 0.0005%
Maximum Output Level +24 dBu
Output Impedance 75 Ω
Headphone Outputs (A&B) - Standard Mode
Frequency Response 20Hz - 20kHz +/-0.02dB
Dynamic Range (A-weighted) 112dB
THD+N (-1dBFS) (@1kHz) 0.005%