The compact, flexible AMP800 can power up to 8 pairs of headphones and up to 2 different stereo mixes. The AMP800 features 4 totally independent stereo high-power amplifier sections, each with dual outputs. You can use the Phones Level control plus the accurate 6-digit LED output meter per channel for easy level monitoring. There are 2 balanced Stereo Main Inputs with independent Level and Balance controls for individual mixes, selectable for all 4 of the headphone amplifiers. If you must accommodate more than 8 listeners, a parallel Link Output enables cascading of several AMP800s. Long-term reliability is guaranteed thanks to high-quality potentiometers and illuminated switches, and our ultra low-noise audio operational amplifiers provide outstanding sound performance. In addition, all Mini Series models can be stacked to create an ultra-compact signal processing solution.