Mackie HM-400 Black Headphone Amplifier.

Technical Specifications

Power sourceProduct colourSignal-to-Noise Ratio (SNR)Frequency rangeWidthHeightWeightAudio (L/R) inHeadphone connectivityAC input frequencyCables includedDepthLED indicatorsAC input voltagePower consumption (typical)Output impedanceTotal Harmonic Distortion (THD)GainInput impedance

AC

Black

-66 dB

20 – 20000 Hz

483 mm

46 mm

3.6 kg

12

6.3mm

50 – 60 Hz

AC

224 mm

Status, Power, Switch

100 – 120 V

24 W

47 Ω

0.01%

18 dB

20000 Ω