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KEY180.4 AMPLIFIER
OWNER’S MANUAL
INSTALLATION
Mounting: Choose a structurally sound location to mount your KICKER amplifi er. Make sure there are no
items behind the area where the screws will be driven. Choose a location that allows at least 4” (10cm)
of open ventilation for the amplifi er. If possible, mount the amplifi er in the climate-controlled passenger
compartment. Drill four holes using a 7/64” (3mm) bit and use the supplied #8 screws to mount the
amplifi er.
PERFORMANCE
IMPORTANT SAFETY WARNING
PROLONGED CONTINUOUS OPERATION OF AN AMPLIFIER, SPEAKER, OR SUBWOOFER IN
A DISTORTED, CLIPPED OR OVER-POWERED MANNER CAN CAUSE YOUR AUDIO SYSTEM
TO OVERHEAT, POSSIBLY CATCHING FIRE AND RESULTING IN SERIOUS DAMAGE TO YOUR
COMPONENTS AND/OR VEHICLE. AMPLIFIERS REQUIRE UP TO 4 INCHES (10CM) OPEN
VENTILATION. SUBWOOFERS SHOULD BE MOUNTED WITH AT LEAST 1 INCH (2.5CM)
CLEARANCE BETWEEN THE FRONT OF THE SPEAKER AND ANY SURFACE.
Model: KEY180.4
RMS Power, AMP1 and AMP2
@ 14.4V, 4Ω stereo, ≤ 1% THD+N 45W x 4
Length [in, cm] 7-3/8, 18.7
Height [in, cm] 1-11/16, 4.3
Width [in, cm] 2-3/4, 7
Frequency Response [Hz] AMPS 1-2: 20Hz–20kHz
Signal-to-Noise Ratio [dB] >90dB, A-weighted, re: rated power
Input Sensitivity 250mV–10V
Selectable Electronic Crossover OFF, HI-PASS 60Hz, 80Hz, or 120Hz; 24dB/octave
The KEY automatically improves the sound quality of your vehicle with the push of a button! Breathe new
life and realism into any audio system with this small, yet powerful, amplifi er and acoustic processor in
one. With simple, one-step, automatic audio calibration, you'll have drastically improved audio quality and
soundstage in minutes. Get ready to experience symphonic quality music whether you're using factory
speakers and radio, or aftermarket products.
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