Check the listing for details. Soundstream PROx4.1 -4.1-way Electronic Crossover Optimized for Extreme SPL App.. Condition: New. Listed at 99.00 USD. SOUNDSTREAM PROX4.1 5 WAY ELECTRONIC CROSSOVER Signal input/output options: | 2Ch. RCA front/full range stereo or optional mixed mono input | optional 1800 phase inversion switch for front/full range input High/tweeter signal processing options: | variable 1khz-10khz high-pass Crossover | mid-high signal processing options: | variable 12Db 550hz-3khz high-pass & 4khz-20khz low-pass Crossover Mid-low signal processing options: | variable 12Db 50hz-400hz high-pass & 30hz-5khz low-pass Crossover | optional 3-stage 24Db subsonic filter | variable 50hz-350hz 12Db low-pass Crossover FEATURES: 5 Way Electronic Crossover 1 Flat Out and 4-way variable ?lters Filters of 12dB / Octave Level adjustment on all routes 24db Subsonic Filter Switch. Mute key on all channels Phase adjustment 0 /180 General Variable Subwoofer Bass Boost Control Frequency response (-1dB) 10Hz to 100Khz, Input impedance: 10K Ohms Output Impedance: 100 Ohms Current consumption: 250mA Power supply: 10V to 16V. Channel separation:> 80dB Harmonic Distortion (THD):