The HA43 is for expanding or generating four additional headphone channels. It has a 1/4" TRS stereo input, four volume controls, four headphone outputs and is powered by an included AC adapter. The unit has a 20Hz to 20kHz frequency response, small size and is very easy to use.
External Power Supply
One Year Warranty
Rolls HA43 - 4 Output Stereo Headphone Amplifier