Features: Enhances and restores the bass level Screw in power and speaker connecters to chassis for secure connections that prevent disconnection Dual function bass remote Remote wire input, DC sense and music sense turn on Input and output signal clip indicators Mono adjustable output level (can be controlled by bass remote) 48v high level inputs Ability to use test tones to set input and output levels Fine tuning adjustability using bass width and sweep Fixed 4v full range output Small profile Tiffany style RCA connectors Low and high level audio inputs (speaker level inputs) Balanced differential inputs (for noise reduction) Functions & Operations: Adjustable bass enhancement preamp output Bass remote input Preamp full range output Adjustable bass level output Adjustable bass width and sweep adjustments Output level control with clip indicators Input level control with clip indicators Selectable input level range (RCA or speaker level) Selectable turn on trigger (remote wire input, DC sense and signal sense) Low level inputs (RCA level) High level input (speaker level) Power connector with two remote output trigger wires Dual concentric bass knob (A. bass level, B. output level) Specifications: Size: 109W x 134L x 30.5H Fuse value: 1A mini ATC Voltage range: 9.5V -15V Bass remote type: HF-U-02 Fixed voltage output full range: 4V Adjustible subwoofer output voltage: 0V -9V Maximally Flat Frequency Response Main: (-3dB) 10Hz to >50kHz Input Impedance Low level inputs: 20k Ohms Input Impedance High level inputs: 20k Ohms Maximum high level Input Voltage on any input before clipping: >48V Maximum Output voltage at 1.0% THD+N (subwoofer output): 9.0V Signal to Noise Ratio (ref to 2Vrms out, unity gain): -84.0dBA EQ boost: Variable to+8.1dB Unit turn on options: 30mV High Level Audio, 59mV RCA Audio, 2.2V DC Offset Current Draw: 0.32A Turn on Delay Time: 0.1 seconds Setup test tone track: 100 Hz & 1000Hz WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov