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7

GAIN MATCHING

In any audio system, the goal is to reach maximum input and output levels without distortion or clipping. 
The engineers at KICKER have taken the guesswork, and hassle, out of matching the output voltage of 
your source unit to the amplifi er with the Gain Matching feature. To begin, you’ll need to download the 
KICKER test tones from www.kicker.com/test-tones. The following fi les are available in MP3 and WAV 
formats:

1kHz @ 0dBFS, 50Hz @ 0dBFS, 1kHz @ -10dBFS, 50Hz @ -10dBFS, 1kHz @ -5dBFS, 50Hz @ -5dBFS

These test tones are sine waves meant to provide a consistent signal for the KXMA amplifi er to reference. 
The different recording levels are designed to give you the perfect gain match for your application. 

0dBFS:

 Designed for audiophile applications to give you distortion free audio output with the most 

dynamic range.

-5dBFS:

 Designed for normal/daily applications, there will be less dynamic range but higher potential 

audio output levels. With this set up you can get some occasional clipping from the amplifi er.

-10dBFS:

 Designed only for Subwoofer applications, there will be less dynamic range but higher potential  

audio output levels. With this set up you can get some clipping from the amplifi er.

Afterwards, use the following procedure to accurately Gain Match your amplifi er(s):

1. Disconnect the speakers from the KXMA amplifi er.
2. Set all EQ and crossover settings to fl at on your source unit.
3. Play the downloadable fi le from KICKER.com
4. Turn the source unit up to 3/4 volume.
5. Increase the gain of the amplifi er until the Gain LED turns on.
6. Decrease the gain of the amplifi er until the Gain LED turns off.

All level matching circuitry in the KXMA amplifi ers is at the beginning of the signal chain. If you are going to 
use features like bass boost, it may be necessary to readjust the gain to a lower setting to compensate 
for increased output at those frequencies.

Once the amp and source unit are gain matched, you will want to make certain you are not overdriving 
your speakers. Use the following procedure:

1. Set the source until volume to 0.
2. Reconnect the speakers to the KXMA amplifi er.
3. Slowly increase the volume level of the source unit as you listen for audible distortion.
4. If you can hear clipping, decrease the gain of the amplifi er until it is gone.

GAIN

MATCH

Set the 

1X/10X

 frequency multiplier switch to the setting that is appropriate for your application. A setting 

of 

10X

 will set the range of the 

AMP 1

 crossover to 100–5,000Hz, and the low pass crossover of 

AMP 2

 

to 100–5,000Hz. For KXMA stereo amplifi ers, the frequency multiplier switch will only affect the low pass 
crossover.

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, 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 amplifi er.

2021 KXM Stereo Amps Rev D.indd   7

6/28/2021   8:33:49 AM

Содержание KXMA Series

Страница 1: ...MA500 4 KXMA800 4 Manual del Propietario Espa ol AMPLIFICADOR DEL LA SERIE KXM Benutzerhandbuch Deutsch STEREOVERST RKER DER KXM SERIE Manuel d utilisation Fran aise AMPLIFICATEUR DE S RIE KXM KXM AMP...

Страница 2: ...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 AN...

Страница 3: ...l External Fuse sold separately Power Ground Wire KICKER Wiring Kit KXMA400 2 1 x 60 Ampere 8 Gauge KMPK8 PK8 CK8 KXMA1200 2 1 x 150 Ampere 1 0 Gauge PKD1 KXMA500 4 1 x 60 Ampere 4 Gauge KMPK4 PK4 CK4...

Страница 4: ...al 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 KICKER recommends our ignition protected Marine Rated Battery Fuses MRBF for...

Страница 5: ...PERATION MONO minimum impedance of 4 ohms FOUR CHANNEL OPERATION minimum impedance of 2 ohm STEREO AND MONO SIMULTANEOUSLY SAMS OPERATION minimum impedance of 4 ohms bridged mono and 2 ohm per channel...

Страница 6: ...ching The input gain control is not a volume control It matches the output of the source unit to the input level of the ampli er and features Gain Matching to prevent clipping the input For a quick se...

Страница 7: ...EQ and crossover settings to at on your source unit 3 Play the downloadable le from KICKER com 4 Turn the source unit up to 3 4 volume 5 Increase the gain of the ampli er until the Gain LED turns on 6...

Страница 8: ...s may require additional grounding to prevent noise from entering the audio signal If you are experiencing this problem with your head unit in most cases running a ground wire from the RCA outputs on...

Страница 9: ...ly marked on the outside of the package Please return only defective components The return of functioning items increases your return freight charges Non defective items will be returned freightcollec...

Страница 10: ...n nicht verzerrtes System auf dem gleichen Lautst rkepegel Die Schmerzschwelle ist immer eine Anzeige daf r dass der Schallpegel zu laut ist und zu permanenten Geh rsch den f hren kann Seien Sie bei d...

Страница 11: ...2020 Stillwater Designs...

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Страница 13: ...150 Ampere Calibre 1 0 PKD1 KXMA500 4 1 x 60 Ampere Calibre 4 KMPK4 PK4 CK4 KXMA800 4 1 x 100 Ampere Calibre 4 KMPK4 PK4 CK4 Mod le Fusible Externe non inclus Fil de Masse Alimentation KICKER Kit de c...

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