Question about Kenwood KAC9105D Car Amp

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I have a Kenwood KAC-9105D amp with 2 Kenwood KFC-W3012 subs in a seal box. When i turn the volume up loud the bass fades out for a few secs and then comes back to being loud again, this keeps happing over and over. this only happens with this amp, my old amp didnt do this at all. im completly lost and dont know what to do. any help at could could be usefull!

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Cant solve the problem but can help calling kenwood in am i have to of those amps and both do same thing its a cooling problem only 1 little fan pulling air out going to buy couple bigger fans and install in both ports and will let u know how it works out

Posted on Aug 28, 2010

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How to bridge a kenwood kac-9105d


Are you referring to something like this, using two different amps? It is a mono amp, meaning there's one amp in the box.
"KAC-9105D also has a Dual Mono Drive connection that allows you to strap two KAC-9105D amps together to power a single subwoofer."Quoted fromhttp://www.kenwoodusa.com/Car_Entertainment/Amplifiers/KAC-9105D

Here's a link to a page out of the Yamaha Sound Reinforcement book. the top shows a stereo amp (1 box, two different amps inside) hooked up to drive two different speakers, which is known as 'stereo' mode.It then shows the two amps hooked to the opposite sides of the same speaker, which is known as 'bridge' mode.http://books57.net/ampOuts.gif

Any help?

Feb 24, 2012 | Kenwood Car Audio & Video

1 Answer

I have a Kenwood KAC-9105D amp with 2 Rockford fosgate 10 inch subs in a sealed box. When i turn the volume up loud the bass fades out for a few secs and then comes back to being loud again, this keeps...


It's the battery, not enough juice to supply your amp at loud volumes so the bass will drop out especially on long bass notes. Replace your battery!

Sep 25, 2010 | Kenwood KAC9105D Car Amp

1 Answer

What amplifier do i have to used for the kfc-w3009


http://www.sonicelectronix.com/item_22574_Kenwood+KAC-9105D.html

Take a look at this site this amp is what your looking for for any sub you want a mono block it combines internally both the left and right channel into one.

Mar 18, 2010 | Kenwood KFC-W3009 Car Subwoofer

1 Answer

Have kenwood mono amp 4,2,1 ohm capabilitie. What is the best sub to run. The amp is 1600 watts, howmany ohms and 1 or 2 voice coils.


Hello pelikant75,

The best answer depends on your budget for the sub(s) and exactly what kind of sound you are looking to get. Your amps RMS output at 4 ohms is 200 watts and at 2 ohms, it's 400 watts. I could not find that it was 1 ohm stable.

If you are looking for the absolute best bang for your buck, I would highly recommend a pair of entry level MTX 10" subs, model 4501-04, currently priced by Crutchfield at $49.99. And if you buy a pair, they throw in a free Bass Slammer BS210S sealed enclosure. The MTX's power range is 112.5 to 225 watts each, right in there with your amps output. 2 of them in parallel give you a 2 ohm load, just right for your amps best power. And they sound great. You simply can't find a better deal for $100 bucks!

If you want a little better SQ, a pair of Rockford-Fosgate P1S410's should be considered. Again, going to Crutchfield, they currently have this one "BOGO" (buy one get one) for $99.99. You will have to provide your own box, though, no free one with these.

Finally, if you want the best SQ, and your budget allows, consider a set of Alpine SWR-1022D's for $179.99 each. These have dual 2 ohm voice coils, allowing you to series the coils and parallel the subs, resulting in a 2 ohm load to you amp just like the MTX's and RF's recommended above. You will probably want a somewhat larger enclosure for the Alpines as well as a fatter wallet. Your amp is right at the lower end for powering them, so they probably will not be as loud. But they will sound good.

One thing we haven't discussed is the box. The enclosure is just as important, perhaps even more important than the sub(s). More accurate bass is generally produced from a sealed enclosure. A ported enclosure will be louder, but at the expense of sound quality. And whether it's sealed or ported, the enclosure needs to have enough internal volume for the particular sub you are planning to use. A sealed box in the range of .75 to 1 cu/ft will be OK for any of the recommended subs. Add about 15-20% more volume for a ported box and keep in mind that the port needs to be specifically sized for the frequency for which it is tuned.

Hope this helps.

Apr 12, 2009 | Kenwood KAC-8101D Car Audio Amplifier

1 Answer

Poor sound/ Unable to play anything load without distortion.


i can tell you right now base on the vehicle you have a bad system hook wosrt if you are using factory head unit

Mar 25, 2009 | Kenwood KAC-8151D Car Audio Amplifier

2 Answers

Why does my KAC-8404 cut off at high volume bass?


amp 101

1/0 wire to the amp or the amps will loose power

check the connections mainly the negative

wiggle the wires see if you get a cut out or not

a cap will help you give constant power to the amp and not allow them to drain on long bass notes

hope this helps

Dec 26, 2008 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

2 Answers

Kenwood KAC-9152D monoblock


The amp says it's 1 ohm stable, so assuming the DVCs are dual 4 ohm, you should be able to connect all "+"'s together and all "-"s together, like the picture below:
0f1cebe.jpg

As for the amp shutting off for a few seconds, it sounds like it's either:
A) Not getting enough power at high volume.
OR
B) Overheating.

The cap on the +12V to the amp should help, but putting a meter on the +12V might tell you whether it's dropping too low (<11V).

When you first turn the volume up, how long does it work fine before shutting off? Is it with the vehicle running or not?

Mar 25, 2008 | Kenwood KAC-9152D Car Audio Amplifier

2 Answers

Kenwood audio equipment


If it was mine i'd want $200-$300 if in mint condition. Try a classified in the local paper or online ads.

Sep 11, 2007 | Kenwood 2 10 " SUBS SUBWOOFERS 500W POWER...

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