Question about Kenwood KAC-9152D Car Audio Amplifier

1 Answer

Subwoofers not getting music

My amp is on, not in protect mode and no sound is coming out of my subs. I already hooked up another amp, another sub, and new speaker wire...and it does the same thing, green light but no sound...no fuses are blown this all happened right after i upgraded to more powerful subs with no capacitor, but it wont come back on now???????????

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  • howdoiuhhhh Apr 28, 2008

    it went out during music play, i dont kno what it could be... this sucks

  • Lashbrook69 Feb 23, 2009

    i have 2 new mtx subs wired to my amp with power and eveything it has power for sure but the subs dont work could the power be being used from somewere eles or is there a input problem.....

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  • Master
  • 975 Answers

Looks like you need to check the SOURCE of where the signal is coming it could be that your CD car stereo SUB opt. is turn off , check the menu of SOURCE and switch to SUB on , hope this helpful

Posted on Apr 28, 2008

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1 Answer

Well i was driving one day and my subs just whent out so i bought brand new wires and hooked everything up but the power protector light turns red whenever uu turn it up past volume 10 i really do not know...


It sounds like your amp is going into protection. I know it's frustrating, but this is actually a good thing. If you subs you have are drawing too much power and the amp can't keep up, it will shut off instead of melting the board. Usually, the protection mode only last a few seconds. The user normally turns the music down that the protection shuts off and the music plays again. I recommend looking at a larger amp for your subs, if you are going to play them that hard.

Aug 14, 2011 | Car Audio & Video

1 Answer

Why want my subwoofer play like it's supposed to? It barely plays


check your ohm load on that audiobahn sub some amps run at an bypass or ohm load and then kick off if its the sub itself is not a 2ohm stable or 4ohm stable

Mar 03, 2010 | Car Audio & Video

2 Answers

S series sub cuts out


this sounds like an ohm load problem do u have it bridged

Nov 01, 2009 | Alpine SWR-1222D 12" Type-R Series...

1 Answer

Hooking sub up


Hello missywarden,

According to the specifications, the amp is capable of "tri-mode" operation, that is, running normal speakers on the individual channels while also powering a subwoofer in bridged mode.

Your sub needs to be a minimum of 4ohms and should be relatively efficient. I'd look for a sub that has an RMS power range of from about 75 watts up to a maximum of 250 watts.

The sub connects to the leftmost speaker terminal (positive - right channel) and the rightmost speaker terminal (negative - left channel).

It's not going to be a really loud subwoofer. The power is 360 watts RMS which will be shared by the normal speakers and subwoofer.

Hope this helps.

Aug 05, 2009 | Power Acoustik TS620-2 Car Audio Amplifier

1 Answer

My amplifier is not in protection mode everything works fine but my subwoofers play a very small sound . and it is not my subs at fault i already tested my subs and they work fine. i know theres a problem...


THERES A PROBLEM WITH YOUR RCA'S,IF YOU JIGGLE THEM WHILE THERE HOOKED UP TO THE AMP AND THEY MAKE THINGS LOUDER OR POP THAN YOU NEED TO GET THE RCA TERMINALS FIXED.

May 07, 2009 | Crunch Maxxsonics PZi 3000.1D Car Amp

1 Answer

Kole amp in protect mode?


Are you setting the bridge switch for both left and right or are you trying to run both subs off of one set of terminals? If you running the subs off one set of terminals you are effectively running the amp below 2ohms and thus the amp is not 2ohm stable and you will destroy it.

Some amps actually all ready run a bridged output for left/right operation, this could also be the reason why the protection circuit is kicking on.

Either way it's a component mismatch and you either need a stronger amp or different subwoofer setup.

Mar 09, 2009 | Kole audio Nitric XP2-2000 Car Amp

1 Answer

New (old) house with stuff installed when we got it


IF YOU HAVE THE SAME AMOUNT OF CABLES AS SPEAKERS HOOK THESE UP TO YOUR AMP THEN SUB TO SUB OUT PUT ON YOUR AMP WITH A SUB CABLE OR PHONO THAT REACHES FROM AMP TO SUB.SET AMP TO ALL CHANNEL STEREO OR MODE THAT SENDS STEREO TO ALL SPEAKERS,ALSO SET SPEAKER SIZE IN SETUP OF AMP TO SMALL AND SUB OUT PUT TO SUB ONLY.YOU SHOULD GET MUSIC AROUND THE HOUSE.IF SOUND IN SAY BEDROOM IS NOT AS LOUD AS BATHROOM USE THE TEST TONE TO LEVEL OUT EACH SPEAKER.

HOPE THIS HELPS.
CABLE GUY.

Jun 26, 2008 | Audio Players & Recorders

1 Answer

My Amp


sounds like the sub that throws it into protect mode is cross wired pull sub out and make sure they are wired right make sure ground from sub goes to ground on box and do same for power wire

Jun 11, 2008 | Sony Xplod Car Audio Amplifier XM-DS1300P5...

1 Answer

What could be wrong???????


The only thing left is the wiring, and or connectors from what you are describing.

You can try another amp and another set of speakers on the same wiring to see if they work. If not, the only thing you have left is the wiring and connectors (if connectors are used).

This suggestion is valid providing that substitution equipment is not defective.

Jerry G.

May 01, 2008 | Kenwood KAC-9152D Car Audio Amplifier

2 Answers

Protection light


You cannot parallel two subs AND run them on the Bridge. You must have at LEAST a 4 ohm load on the bridge, and 2 4 ohm subs in parallel equals TWO OHMS. BAD!!! Move each sub to it's own channel or your amp will soon fry.

Sep 10, 2007 | Sony XM-2002GTR Car Audio Amplifier

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