powerful 120-watt rms amp with built-in 3-way bass reflex cabinet special 15? woofer, 5? horn and a piezo tweeter 4-channel operation with line inputs and dedicated volume controls effects/monitor path on each of the 4 channels additional xlr input on channel 1 for microphone input tape input (rca l&r) for line-level signals tape output (rca l&r) for recording and live applications balanced direct output on xlr connector for easy connection to a mixing console main out for connection of additional power amps active 4-band eq with that excellent sound short-circuit-proof and ?indestructible? power amp with 2-stage fan master volume control stereo headphones output extreme rugged construction for most demanding conditions generously dimensioned power supply for excellent pulse response