Behringer AMP800 V2 Ultra-Compact Headphone Amplifier

Behringer AMP800 V2 Ultra-Compact Headphone Amplifier Specifications Model: Behringer AMP800 Link Output A: 1/4″ TRS Connector, Balanced Frequency Response: 10Hz – 120kHz, -3dB Dynamic Range: 108dB, 10Hz to 22kHz (100? Load) Distortion: 0.007 Typical (100? Load) Crosstalk: Signal-to-Noise Ratio: 10Hz to 22kHz Maximum Output Level:  21dBm / 124mW (100Ω Load) Minimum Output Impedance: 47Ω Power Supply: External Power Supply, 9V /750mA Power Consumption: 11W Dimensions: 48mm x 242.6mm x 120mm / 1.89″ x 9.55″ x 4.72″ (H x W x D) Weight: 0.77kg / 1.7lbs Inputs Connector: 1/4″ TRS, Balanced Impedance: Balanced: 20kΩ Unbalanced: 10kΩ CMRR: 40dB Typical @ 1kHz Phones Output Connector: 1/4″ TRS, Stereo Impedance: Min. 100Ω Maximum Output Level:  13dBu @ 100Ω Load