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KMA MULTI-CHANNEL SERIES AMPLIFIERS
OWNER’S MANUAL
INSTALLATION
Mounting:
Choose a dry, 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. Drill four holes using a 7/64” (3mm) bit and use the supplied
#8 screws to mount the amplifi er.
Wiring:
The KMA amplifi er’s RCA inputs will receive either high or low level signals from your car stereo’s
source unit. A high-level signal can be run from the source unit’s speaker outputs to the stereo RCA input
on the end panel of the amplifi er using the KICKER KISL as shown (see page 3). Alternatively, the signal
can be delivered to the amplifi er using the low-level RCA outputs on the source unit. Keep the audio
signal cable away from factory wiring harnesses and other power wiring. If you need to cross this wiring,
cross it at a 90 degree angle.
PERFORMANCE
MODEL:
KMA150.2 | KMA300.4 | KMA450.6
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:
KMA150.2
KMA300.4
KMA450.6
RMS Power
@ 14.4V, 4Ω stereo, ≤ 1% THD+N
@ 14.4V, 2Ω stereo, ≤ 1% THD+N
@ 14.4V, 4Ω mono, ≤ 1% THD+N
40 x 2
75 x 2
150 x 1
40 x 4
75 x 4
150 x 2
40 x 6
75 x 6
150 x 3
Length [in, cm]
8-1/16, 20.4
12-7/16, 31.5
13-15/16, 35.3
Height [in, cm]
2-5/16, 5.9
2-5/16, 5.9
2-5/16, 5.9
Width [in, cm]
7-1/8, 18
7-1/8, 18
7-1/8, 18
Remote Level
No
No
Yes
Specifi cations common to all models:
Frequency Response ± 1dB
10Hz-20kHz
Signal-to-noise Ratio
>95dB, A-weighted, re: rated power
Input Sensitivity
Low: 125mV-5V, High: 250mV-10V
Electronic Crossover
150.2 & 300.4:
Off, Variable HP & LP 50–200Hz, 12dB/octave slope
450.6:
Amps 1 & 2 - Variable HP 0–200Hz, 12dB/octave slope;
Amp 3 - Off, Variable HP & LP 50–200Hz. 12dB/octave slope
KickEQ™ Bass Boost
0-12dB @ 40Hz (450.6 AMP 3)
