Lake People G111 Black Phoneamp, Headphone Amplifier, Transistorized amplifiers, Alps RK 27 potentiometer for volume control, Pre-gain with 5-way switchable pre-amplification, Channel-separated construction, Discrete output stages with 4 transistors per channel (V100 technology), LF frequency range 150 kHz (-3 dB), Toroidal transformer and large screening capacities, Outputs with switch-on delay via relay, Frequency range: 0 Hz - 150 kHz (-3 dB), Input sensitivity: +6 dBu, Input impedance: 10 kOhm, Dynamic (SNR): 129 dBA, 2 Line inputs: XLR balanced / RCA unbalanced, 2 Stereo headphone outputs: 6.3 mm jack, Internal 110 - 230 V power supply, Dimensions (W x H x D): 168 x 47 x 125 mm, Colour: Black