Allen & Heath XB-14 2 Compact Radio Broadcast Mixer Allen & Heath XB-14 2 Radio Broadcast Mixer - Allen & Heath 1 Year Limited Warranty Inputs: Mono Channel Microphone Input (XLR): +6 to -63 dBu for Nominal (+17 dBu Maximum) Mono Channel Line Input (TRS Jack Socket): +10 to -26 dBu (+30 dBu Maximum) Stereo Input (TRS Jack and RCA Sockets): 0 dBu Nominal (Control = Off to +10 dBu) Telco Channel Input (XLR): +10 to -26 dBu (+30 dBu Maximum) Outputs: PGM L/R Outputs (XLR): +4 dBu Nominal (+25 dBu Maximum) PGM Mono Output (RCA Phono): 0 dBu Nominal (+21 dBu Maximum) Aux Output (Jack Socket: 0 dBu Nominal (+21d Bu Maximum) Mix B, Audition and CRM Outputs (RCA Phono Sockets): 0 dBu Nominal (+21 dBu Maximum) Telco Output (XLR): 0 dBu Nominal (+21 dBu Maximum) USB Audio: CODEC: USB Audio In/Out: USB 1.1 Compliant 16 bit Sample Rate: 32, 44.1 or 48 kHz THD + N: Microphone in to PGM L/R Out, 0 dB Gain 1 kHz + 10 dBu Out: 0.001%