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OPERATION
Mini-USB for internal use only; do NOT remove or tamper. KICKER is not responsible for any damage to
equipment resulting from connections made to this port.
PRT
GAIN
KXMA1500.1
Automatic Turn-On Selection: The KXMA series offers three different automatic turn-on modes that
can be selected on the end panel; +12V, DC Offset, and Audio. Using either the DC Offset or Audio
mode causes the REM terminal to have +12V out for turning on additional amplifi ers.
• Remote Turn-On: Set the switch to +12V to use the remote turn-on lead from your source unit.
Run 18 gauge wire from the Remote Turn-On Lead on your source unit to the terminal labeled REM
between the amplifi er's positive and negative power terminals. This is the preferred automatic turn-on
method.
• DC Offset Turn-On: If Remote Turn-On is not an option, the next best setting is DC Offset. The DC
Offset mode detects a 3V DC offset from the HI-Level speaker outputs when the source unit has
been turned on.
• Signal Sense Turn-On: The Audio setting is the fi nal alternative for Automatic turn-on. This is a
Signal Sense turn-on method that detects the incoming audio signal from your source unit and
automatically turns on the amp. This turn-on method will not work properly if the input gain control is
not set appropriately.
Input Level: The RCA inputs on KICKER KXMA amplifi ers 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 amplifi er. Refer to the wiring section of this manual for additional
instructions.
Input Gain Control with Gain Matching: The input gain control is not a volume control. It matches the
output of the source unit to the input level of the amplifi er and features Gain Matching to prevent clipping
the input. For a quick setup, turn the source unit up to about 3/4 volume (if the source unit goes to 30,
turn it to 25). KICKER recommends using the test tones at https://www.kicker.com/test-tones/ to reach
the most accurate and best performing settings. Next, slowly turn (clockwise) the gain on the amplifi er up
until you see the Gain LED light up or hear audible distortion, then turn it down a little. If the GAIN knob's
backlight comes on, the input is still clipping. For full instructions on Gain Matching, please see the next
page.
SUBSONIC: Use the Subsonic fi lter to set a hi-pass crossover from 10Hz–80Hz with a 24db/octave
slope. This is used to protect the subwoofer driver from over-excursion due to ultra-low frequencies,
preventing damage while ensuring your amplifi er's power is used effi ciently.
LO-PASS X-OVER: Use the LO-PASS X-OVER switch on the end panel of the amplifi er to set the
internal crossover from 40Hz–160Hz. This will set the low pass fi lter of the amplifi er to only pass
frequencies below the set threshold.
KICK EQ+ Bass Boost Control: The variable bass boost control on the side of the amplifi er is
designed to give you increased output, 0–6dB, from 20Hz–80Hz, with a bandwidth setting to determine
the width of the curve. The setting for this control is subjective. If you turn it up, you must readjust the
input gain control to avoid clipping the amplifi er.
2024 KXMA Mono Amp Rev F.indd 7
2024 KXMA Mono Amp Rev F.indd 7
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11
10
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40
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z
SUB-
LO-PASS
SONIC
X-OVER
GAIN
MATCH
KICK EQ+
160
20
80
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H
z
H
z
CENTER
BAND-
FREQ.
WIDTH
5
0
6
d
B
BOOST
5/21/2024 11:18:25 AM
5/21/2024 11:18:25 AM
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