SOUNDSTREAM PROX4.1 Bass Reconstruction Processor

SOUNDSTREAM PROX4.1 has 2-Channel RCA Input Front/Full Range Stereo or Optional Mixed Mono, 180-degree Phase Inversion Switch for Front/Full Range Input and Optional 2-Channel RCA Input or Front/Full Range Input for Low/Subwoofer.  It has medium-low signal processing options: | Variable 12Db 50hz-400hz High Pass and 30hz-5khz Low Pass Crossover | optional 3-stage 24Db subsonic filter | Variable 50hz-350hz 12Db Low Pass Crossover. HIGHLIGHT FEATURES : 2Ch. RCA Front/Full Range Stereo or Optional Mixed Mono Input 2Ch. RCA Full Range Output w/ Mute Switch & Variable 9V Line Driver 2Ch. RCA Output for Low/Sub, Mid-Low, Mid-High, & High/Tweeter Variable 9V MAX Output Line Driver for All Low, Mid, & Sub Channels Dedicated Momentary Mute Switch for All Low, Mid, & Sub Channel Optional 180 Degree Phase Inversion Switch for Front/Full Range Input Optional 3-stage 24dB Subsonic Filter Variable 50Hz-350Hz 12dB Low-Pass Crossover