KMA KMA600.1 User manual

KMA600.1

KMA

AMPLIFIERS

Owner’s Manual

KMA.1-SERIES AMPLIFIERS

OWNER’S MANUAL

INSTALLATION

Mounting: Choose a dry, structurally sound location to mount your KICKER ampliﬁer. 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 ampliﬁer. Drill four holes using a 7/64” (3mm) bit and use the supplied

#8 screws to mount the ampliﬁer.

Wiring: The KMA ampliﬁer’s RCA inputs will receive either high or low level signals from your 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 ampliﬁer using the KICKER KISL as shown (see page 3). Alternatively, the signal can be

delivered to the ampliﬁer 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: KMA600.1

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: KMA600.1

RMS Power

@ 14.4V, 4Ω mono, ≤ 1% THD+N

@ 14.4V, 2Ω mono, ≤ 1% THD+N

300W x 1

600W x 1

Length [in, cm] 8-1/16, 20.5

Height [in, cm] 2-5/16, 5.9

Width [in, cm] 7-1/8, 18

Frequency Response ± 1dB 25Hz-200Hz

Signal-to-noise Ratio >95dB, A-weighted, re: rated power

Input Sensitivity Low Level: 125mV–5V

High Level: 250mV–10V

Electronic Crossover Variable Lo-pass 50Hz–200Hz, 12dB/octave

KickEQ™ Bass Boost 0-12dB @ 40Hz

Subsonic Filter 25Hz, 24dB/octave

Remote Bass Yes

Install a fuse within 7” (18cm) of the battery and in-line with the power cable connected to your ampliﬁer.

source unit

high-level speaker

outputs

to ampliﬁer

shield

–

core conductor KICKER KISL (optional)

from source unit high-

level speaker outputs

to ampliﬁer

Model External Fuse

(sold separately)

Power/Ground Wire KICKER Wiring Kit

KMA600.1 1 x 80 Ampere 4 Gauge PK4, CK4

12V

battery

external fuse

remote turn-on (see page 5)

woofer

MONO OPERATION

minimum impedance of 2 ohms

ABYC-compliant power terminals

Ampliﬁer uses 304-stainless steel

screws and conformal coated PCB

for increased weather resistance.

aluminum bottom

plate

≤7”

(18cm)

For multiple ampliﬁer installations where distribution blocks are used, each ampliﬁer should have its

proper-rated fuse, or breaker, installed between the ampliﬁer and the distribution block within seven inches

of the block, or on the distribution block if it provides for fusing. The primary power wire should also be

fused between the battery and distribution block, within seven inches of the battery’s B+ terminal, with

a fuse or breaker rated at least to the sum of the individual ampliﬁer’s fuse values, but not to exceed

1.5-times the sum of the individual fuse values (not to exceed the ampacity of the thermal insulation of the

wiring as shown in U.S.C.G. CFR33 183.425, Table 5). See the diagram below.

NOTE: Seven inches is the standard distance under U.S. Coast Guard CFR33 for placement of fuses or

breakers as required by law for new boat manufacturing. We recommend trying to adhere to this standard

in a consumer installation. Failure to do so does not mean you are breaking the law, but it does put the

safety of your boat and passengers at risk in the event of a power wire short circuit.

KICKER will now provide a three-year warranty with all KMA-

Series Ampliﬁer purchases paired with a qualifying KICKER

Installation Kit* .

This extends the standard warranty by an additional year. Ampliﬁer and Kit must

be purchased from an Authorized KICKER Dealer.

KICKER KMA ampliﬁer success is currently at an unheard-of rate, making the extended

warranty program even more beneﬁcial to you.

Using poor-quality, under-spec wiring kits will impede KMA ampliﬁer performance.

A superior-quality KICKER installation Kit is guaranteed to extend the life of KMA

ampliﬁers.

The new extended warranty applies only to KICKER ampliﬁers and accessories sold to consumers by

Authorized KICKER Dealers in the United States of America or its possessions. It also only applies to the

original purchaser of KICKER ampliﬁers and accessories. One warranty extension per ampliﬁer is allowed

regardless of the number of ampliﬁer installation kits purchased. This program does not apply to “B”-stock

product or factory-refurbished product.

This offer is for a limited time, so see your local Authorized KICKER Dealer soon for details.

*U.S.A. Only | EE.UU. solamente | Nur USA | Les USA Seulement

12V

external

fuse

to ampliﬁer

≤7”

(18cm)

external

fuse

≤7”

(18cm)

external

fuse

power distribution block

battery

≤7”

(18cm)

OPERATION

Automatic Turn-On Selection: The KMA series offers two different automatic turn-on modes; +12V

and DC Offset.

• Remote Turn-On: Run 18 gauge wire from the Remote Turn-On Lead on your source unit to the

terminal labeled REM between the ampliﬁer’s positive and negative power terminals. This is the

preferred automatic turn-on method.

• DC Offset Turn-On: The DC Offset mode detects a 6V DC offset from the HI-Level speaker outputs

when the source unit has been turned on.

Input Level: The RCA inputs on KICKER KMA ampliﬁers are capable of receiving either Hi or Low-level

signals from your source unit. If the only output available from your source unit is a Hi-Level signal, simply

press in the Input Level switch on the ampliﬁer. Refer to the wiring section of this manual for additional

instructions.

Crossover Control: The variable crossover on the side of the ampliﬁer allows you to adjust the lo-pass

crossover frequency from 50–200Hz. The setting for this control is subjective; 80Hz is a good place to

start.

Input Gain Control: The input gain control is not a volume control. It matches the output of the source

unit to the input level of the ampliﬁer. Turn the source unit up to about 3/4 volume (if the source unit goes

to 30, turn it to 25). Next, slowly turn (clockwise) the gain on the ampliﬁer up until you can hear audible

distortion, then turn it down a little.

Bass Boost Control: The variable bass boost control on the side of the ampliﬁer is designed to give you

increased output, 0–12dB, at 40Hz. The setting for this control is subjective. If you turn it up, you must

readjust the input gain control to avoid clipping the ampliﬁer.

Remote Bass-KMARC: With the KMARC remote bass level control, you have the ability to control the

output level of the ampliﬁer remotely. To surface-mount the KMARC remote bass level control, simply

screw the remote to the chosen location, then run the cable from the controller to the “Remote Bass”

jack on the ampliﬁer panel. Do NOT connect/disconnect while the ampliﬁer is on. Connecting the cable

without the remote will cause the ampliﬁer to output at full gain, possibly damaging your speakers. See

page 6 for installation.

KMARC REMOTE BASS INSTALLATION

Surface-mount the KMARC

remote using the supplied screws.

Connect the cable to the KMARC remote and the Remote

Bass connection on the ampliﬁer

back view

Remote cable passes audio; do

not run cable parallel to power

wires.

TROUBLESHOOTING

If your ampliﬁer does not appear to be working, check the obvious things ﬁrst such as blown fuses, poor

or incorrect wiring connections, incorrect setting of crossover switch and gain controls, etc. There are

Power (PWR) & Protection (PRT) LEDs on the side panel of your Kicker KMA series ampliﬁer. Depending

on the state of the ampliﬁer and the vehicle’s charging system, the LEDs will glow either green or red.

When the green LED is lit, this indicates the ampliﬁer is turned on and no trouble exists.

Green LED off, no output? With a Volt Ohm Meter (VOM) check the following: +12 volt power

terminal (should read +12V to +16V) Remote turn-on terminal (should read +12V to +16V) Check

for reversed power and ground connections Ground terminal, for proper conductivity.

Green LED on, no output? Check the following: RCA connections Test speaker outputs with a

“known” good speaker. Substitute source unit with a “known” good source unit. Check for a signal

in the RCA cable feeding the ampliﬁer with the VOM meter set to measure “AC” voltage.

Red LED ﬂickering with loud music? The red LED indicates low battery voltage. Check all the

connections in your vehicle’s charging system. It may be necessary to replace or charge your battery or

replace your alternator.

Red LED on, no output? Ampliﬁer is very hot = thermal protection is engaged. Test for proper

impedance at the speaker terminals with a VOM meter (see the diagrams in this manual for minimum

recommended impedance and multiple speaker wiring suggestions). Also check for adequate airﬂow

around the ampliﬁer. Ampliﬁer shuts down only while your boat is running = voltage protection circuitry

is engaged. Voltage to the ampliﬁer is not within the 10–16 volt operating range. Have the vehicle’s

charging and electrical system inspected. Ampliﬁer will only play at low volume levels = short circuit

protection is engaged. Check for speaker wires shorted to each other. Check for damaged speakers or

speaker(s) operating below the minimum recommended impedance.

No or low output? Check the balance control on source unit Check the RCA (or speaker input)

and speaker output connections. Check for reversed polarity at the speaker(s)

Alternator noise-whining sound with engine’s RPM? Check for damaged RCA (or speaker input)

cable Check the routing of RCA (or speaker input) cable Check the source unit for proper grounding

Check the gain settings and turn them down if they are set too high.

Check out the collection of marine amplifiers we offer.

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