HA4 PLUS mini headphone amplifier splits a single stereo signal into four headphone outputs.

The unique circuitry delivers top-notch sound even in a harsh environment.

Each channel comes with its own level control without interaction.

Its USB power supply design allows it powered by PC,

phone charger, bank charger etc. High quality steel chassis provides extreme durability

 

Line inputs
* Type:	1/4’’ TRS connector, stereo
* Impedance:	100kΩ max, 10kΩ min
* Max input level:	+20dB
Headphone outputs
* Type:	1/4’’ TRS connector, stereo
*  Impedance:	47Ω
*  Max output level:	40mW in 100Ω
* Power supply:	USB 5V
*  Dimensions:	110mm*60mm*48mm