Samson QH4 4-Channel Headphone Amplifier - Manual (Page 9)

Input Connectors 2 x 1/4” balanced TRS, 1/8” stereo unbalanced TRS
Max Input Level +21dBu, 1% THD
Input Impedance 20kΩ
Frequency Response 20Hz to 20kHz ±0.5dB
Noise floor -114dBu, 22k BW unweighted
Dynamic range 122dB, 22k BW
Signal to noise ratio 96dB, re 1mW at 32Ω load
Aux Outputs 1/8” stereo unbalanced TRS
Max Aux Output Level +14dBu, 1% THD
Aux Output Impedance 100Ω
Headphone Outputs 4 x 1/4” stereo TRS
Max Output Power 282mW per channel, 0.5% THD at 32Ω
Headphone Frequency Response 20Hz to 20kHz -1dB @ 32Ω
Controls MASTER Volume knob, Master MUTE switch, Master MONO switch, 4 x Channel Volume knobs
External Adapter 15VDC, 800 mA, pin positive
Weight 0.88lb / 0.4kg
Dims (LxWxH) 4.88” x 4.88” x 1.57” / 124mm x 124mm x 40mm
At Samson, we are continually improving our products, therefore specifications and images are subject to change without notice.
Specifications