The PHA80 4-Channel Stereo Headphone Amplifier with LED Indicators from Pyle-Pro provides versatile listening options in a compact and lightweight design. The amp has 2 stereo 1/4" input connectors, allowing each listener to choose between 2 different audio signals. There are 4 output channels, each with 1/4" and 3.5mm connectors on the front panel, plus 1/4" connectors on the rear panel. There is also a stereo link output on the rear panel.
The front panel offers LED level meters for each of the input and output channels so you can keep tabs visually. The input channels each have level and balance controls, while the output channels have level controls and selector switches to choose which input signal is monitored. The amp operates on 9VAC power via the included power supply.