The BOSE's POWERMATCH PM8250 programmable professional power amplifier delivers concert-quality sound. The PM8250 has several channel and power options, as well as an integrated audio DSP, a front panel interface, and a USB port. Versions with Ethernet support network configuration, control, and monitoring. Optional digital accessory cards can be plugged into an expansion slot. PowerMatch amplifiers combine a variety of Bose technologies to provide an unrivalled mix of performance, efficiency, and ease of installation—all in a dependable, unique design. The PM8250 comes in two models, each with a USB port for single-unit setup and control using Bose ControlSpace® V3.0 or higher software.