Details：

Works voltage: AC115V and AC230V optional Size:155mm*60mm*265mm (W*H*D) Front color:Black （ can provide silver front ，if need ，pls add a note ） Load impedance 16-600 Ohm Sensitivity of 1.1 V / 50,000 ohms Maximum output power 2,400 mW + 2,400 mW (16 ohm load) 1,200 mW + 1,200 mW (32 ohm load) 600 mW + 600 mW (64 ohm load) 65 mW + 65 mW (600 ohm load) Input impedance: 47KOhm Frequency characteristics: 10Hz - 35kHz Signal ratio for noise: >90dB @ Gain 6dB Output impedance: line output 0.2 Ohms Frequency Response 5 ~ 200,000 Hz Using Toshiba 2SK370 FET as a single differential input, sound is very delicate, K2955 J554 power FET as the output, low frequency is very full, very flexible. on the amp Board with a gain switch, you can set the magnification depending on headset Note: the K2955,J554 are used.but with good performance. This is a Full Separate Pure Class A headphone amp. the circuit is base on the famous Audio Technica HA5000. the sound is very Excellent .

Package included：

Finished headphone amp x 1 Not included AC power cord