Question about Kenwood KAC- X810D Car Audio Amplifier

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My amp turn on but for some reason it dosent push out any power to the sub

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Make sure there is not an input level control and that you have the right RCA connectors from the head unit connected. If you do see an input control first see from the head unit specs on what the max. output is comming out from the head units VIA the RCA Plugs. then see from the amp specs what the max. input should be inputted to the amp . If the output from the head unit is higher then the allowed input from the amp, your going to blow up the amp the first time you crank it. I have seen this happen many times. if you do not know how to balace the input of the amp please read the instructions on the amp or seek a professionals assistance.

Posted on Oct 10, 2006

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Posted on Jan 02, 2017

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2 Answers

Kicker 12L5 blew from a kicker zx750.1


MY BEST GUESS FROM WHAT YOU HAVE SAID IS THAT THE BOX WAS TO SMALL. BUT YOU ARE OVERPOWERING THE SUB RUNNING IT AT 2 OHMS ON A 750 WATT AMP WITH A SUB THAT IS ONLY RATED FOR 600. NO MATTER HOW FAR YOU TURN YOUR SETTINGS DOWN, YOUR STILL PUSHING TO MUCH POWER FOR THE SUB TO HANDLE. IT IS ONLY RATED 600 WATTS FOR A REASON. ESPECIALLY IF YOU LISTEN TO MUSIC THAT HAS A REAL LOW END AND THEN A HARD HIT. REMEMBER A HARD HIT WILL SPIKE YOUR AMPS OUTPUT THEREFORE PUSHING MORE WATTAGE TO THE SUB.

Nov 19, 2013 | Kicker Car Audio & Video

1 Answer

If i have a 4 channel 2000 watt amp, can i use 1600 watt wires if i only have 2 subs hooked up to it?


Yes, you will be fine. 4 gauge power wire is sufficient for a couple of reasons, the primary one being that most of the companies that are boasting 2000 watts for a 4 channel amp are off brand "web-retail only" companies, and they severely over rate the power output of their amplifiers. Secondly the supposed 2000 watts is peak power and not rms power. Peak power means how much power that amp can put out during absolue climax of the music or during a tone burst. RMS power is how much that amp will put out continously to your speakers or in this case, your subs. If you look at the spec sheet of that amp, in all actuallity you're probably only getting 200-300 watts rms even bridged.

On a side note, if you really want to push your subs hard, you might want to consider getting a mono block or "class d" amplifier and use that 4 channel amp to push your surround speakers. Class d/mono block amps are specifically designed to push subwoofers and will give you the most efficient power out and the best heat dissipation to withstand the output required to drive subwoofers. You'll get better bass and also more adjustability to tweak the sound levels coming out of your subs. Hope that helps.

Apr 02, 2011 | Car Audio & Video

1 Answer

Why is the red light that says protect on? my amp turns on but it dosent work, i have a sup hooked up & it dosent work. the red light that says protect is on.


first thing check all ground and power wires and make sure ur rca wire make sure it isnt cut in anyway. after that unplug ur sub and unplug the negative wire from ur amp, while its out check the fuses on the amp if all is well put all fuses back if not get new. then plug the negative wire back in if protect goes off check for heat and if no heat inspect the wires from speaker out put all the way to the sub, look for any wire touching another this is were most problems are even the smallest wire can trip a protect. if u still cant find the problem. an amplifier specialist is in order.if its trashed go on ebay and buy a powerbass there goin cheap right now. hope i could help

Oct 12, 2010 | Lanzar VIBE266 Car Audio Amplifier

1 Answer

Car audio


Most likely the RCA's are running from the sub out on the deck to the amp. You need to run two sets of RCA's for a 4 channel amp. One for the sub out and one to the front or rear channel.

Hope this helps.

May 12, 2009 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

My amp!


you may not have a big enough power wire to it, and it could also not be grounded good. You have to know the limits of your amp too. They are rated by Ohms of stability. Most amps that small are only stable down to 4 ohms. Most subs have 4 ohm coils, but there are also double coils, and 8 ohm subs. You will need to know the ohms on your subs. If you load your amp down to a lower ohm load than the amp is capable of handling, then it could also cause this.

May 06, 2009 | JBL SF25 Main / Stereo Speaker

1 Answer

I have all the wires running right but for some reason my amp is not picking up or pushing my subs. could the rca jacks be messed up on the stereo?


According to the specs for the xo 1945- the output is; 50W x 4 Max Power Output , and I do not see a pre amp output listed. So I think to connect subs, you will need a separate AMP.
The way this works; the rear speaker wires from the xo 1945 hook into the Add-on amp, for example a 4 channel amp. In a 4 channel amp, the rear speakers come off two of the channels of the add-on, and the subs come off the other two channels. There is also the option of bridging two channels for more output power to ONE sub.
You did not mention what size sub(s) you were thinking of adding, but keep in mind that the ox 1945 puts 50 watts MAX per channel. So, if you add two 12" subs and a 1500 watt amp to drive them, your total sound is going to be very uneven.
If you go on line and look up auto audio or amps, you'll get a good idea of all the Sub and amp options that are available.... Hope this helps.

May 02, 2009 | Car Audio & Video

1 Answer

Problems with my txi 6006 amp


check all connections then check the subs voice coils to make sure there not burnt smelling, or burnt looking.then check the cars charging system you might have to add an extra battery,and or cap.

Jan 09, 2009 | Hifonics Titan TXi 6006 Car Audio...

1 Answer

As i turn volume up amp either cuts off or act wierd


ur pushing to much power throught the amp shutting off the amp and the light might turn yellow on the amp if so then it is that reason

Nov 17, 2008 | Pioneer GM-X324 Car Audio Amplifier

1 Answer

I have 1 sony xplod 12" 1300wat sub and a 1200w sony amp... how do i set the amp so that the bass hits but dosent distort


look for the potenciometer input for the sub woofer(gain) and turn to left,when the distors stop that is the point of work subwoofer

Aug 10, 2008 | Sony Car Audio & Video

1 Answer

Protector light keeps coming on


the reason why this is happining is that your pushing to much power than that amp can handle you need to get a bigger amp so it can withstand the power that you want to push to it also the red light comes on so you dont blow the amp.

Jan 08, 2008 | Sony XM-1252GTR Car Audio Amplifier

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