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Why Do I Need A Crossover? Speakers reproduce sound based on high, low, or mid-range frequencies. This process is called the crossover effect and occurs because the vast majority of audio systems cannot cover the entire spectrum sufficiently to minimize sound distortion and maintain an appropriate frequency ratio. A lot of amplifiers have either a built-in “variable” crossover so that you can set the frequency at exact sound specifications or a “fixed” crossover. By connecting the BX55 to your amplifier, you will have total control you exactly how you want your bass to sound, as well as your mid level and high level frequencies, giving you a pristine listening experience. Installation Find a suitable location in the vehicle to mount your BX55.Bolt the crossover to a secure mounting surface avoiding making any holes near areas with electrical wiring, gas tank etc.Using the screw terminals provided, connect the shortest possible wire to the chassis ground point. The +12V connection should be made directly to the car battery, and remote should be connected to the remote turn on lead of your head unit. When connecting directly to the battery, install a 3A fuse within 18 inches of the battery terminal.Connect all line inputs and outputs using high quality RCA cables.Recheck all connections before powering up.Set all level controls to their minimum positions and set all crossover controls, switches, etc. to the desired frequency or positions.Once the system is powered up, set the volume control on the head unit to a moderate level, so that your normal speaking voice can be heard while the music is playing.Further fine tuning of the various controls may be necessary to obtain the desired results.When unsure about installation or system tuning, please contact an authorized Boss Audio technical advisor at 1-800-999-1236 ext. 1631. Features Three way electronic crossoverSilver Plated RCA and power connectorsRemote control provided for low pass output levelRemote on/off power controlLED power indicatorSwitching power supplyLow-noise high slew rate audio grade Op ampsFully adjustable low and high pass output levelsPhase reverse volume on low passIndefinitely variable low pass crossovers, rear and mainIndefinitely variable high pass crossovers, front and rearLow pass mono channel selector for mixed or direct low pass inputsBandpass/highpass switch for rear channelsBass boost volume with variable frequency volume Specifications Input impedance: 39K-Ohm each channelMaximum input level: 4.5V RMSMaximum output level: 9V RMSHigh pass crossover, 12dB/octave: Front 65Hz - 4.5KHz – Rear 65Hz - 4.5KHzLow pass crossover, 12dB/octave: Rear 300Hz – 4.6KHz – Main 40Hz – 4.2KHzLow boost: 0 to +18dBGain structure: variable, 0 to +6dBFrequency response, low pass: 5Hz – 4.8KHz, -3dBFrequency response, high pass: front 65Hz – 50KHz, -3dB – Rear 65Hz – 50KHz, -3dBSignal to noise ratio: >95dBTHD: Dimensions: 8-3/4” W x 6-1/2” L x 1-1/2” H (222mm x 165mm x 38mm).
BOSS AUDIO BX55 2/3-way Pre-Amp Electronic Crossover with Remote Subwoofer Level Control - B0002VMT24