PCH was designed from the ground up to be sonically transparent, virtually unclippable and bulletproof — it’s the ultimate solution for your pedalboard, keyboard rig or synth setup. Runs on 9VDC — internally converted to 24V to be virtually unclippable Onboard headphone amplifier powerful enough to drive high impedance headphones cleanly Switchable Mic/Line level operation for the XLR outputs Defeatable ground lift for the XLR outputs Defeatable Sum for the Thru outputs Powered by a custom single-channel internal Ojai power supply Internal supply’s custom transformer provides galvanic isolation Extremely flat frequency response Extremely low total harmonic distortion Thick 3mm extruded aluminum external shell with 5mm ribs for bulletproof protection Shell awning design protects headphone volume pot while allowing easy access to jacks High quality long life jacks and switches In Input Impedance: 1 MΩ Max Input Level: +20dBu Thru Output Impedance: 100 Ω SNR: +135dB (A-Weight) Noise Floor: -115dBV (10-22kHz no A-Weight) Gain Relative to Inputs: +0dB Frequency Response: +/- 0.25dB, 10Hz – 80kHz+ HP Output Impedance: 2 Ω Frequency Response: +/- 0.25dB, 10Hz – 80kHz XLR, Line Setting Output Impedance: 275 Ω SNR: +130dB (A-Weight) Noise Floor: -110dBV (10-22kHz no A-Weight) Gain Relative to Inputs: +0dB Maximum Output Level: +20dBu Frequency Response: +/- 0.25dB, 10Hz – 80kHz+ XLR, Mic Setting Output Impedance: 100 Ω Gain Relative to Inputs: -20dB Maximum Output Level: +0.0dBu SNR: +125dB Noise Floor: -125 dBV (10-22kHz no A-Weight) Frequency response: +/- 0.25dB, 10Hz – 80kHz+ Power Supply Input Voltage: 9VDC Current Requirement: 500mA Dimensions L – 4.88″ (124mm) W – 2.97″ (76mm) H -1.94″ (50mm)