The ZoneMaster 2350 two-channel amplifier is designed from the ground up to be as CI-friendly as it is powerful. With 600W x2 available, it will drive any speaker or passive subwoofer with ease. Unique preamp outputs for full range mono and low pass mono provides unsurpassed flexibility. A switch engages an analog 30Hz or 80Hz high pass filter to prevent heavy bass from reaching smaller speakers. A built-in analog 80Hz, 24d8/octave low-pass filter makes the ZoneMaster 2350 an outstanding amplifier for driving multiple in-wail passive subwoofers without the need for external crossovers.