Question about Kenwood KAC-9102D Car Audio Amplifier

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Amps protection if your subs voice coils are heating up to much will this shut down the amp

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Re: amps protection

No but eventually you will melt the varnish coating the wires on the voice coil and will cause the voice coil to fall to short and could possible blow the Amplifier. and definately ruin the speaker.

Posted on Sep 08, 2006

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I have a sony 1652z amp & need to know the best way to wire 2 mtx 10'' blue thunder subs

in order to solve this problem you must figure out what type of enclosure gives you the sound you are looking for and take into account the area this enclosure will be placed in and does that combination allow you to efficiently run your subs without overpowering your components ( subs, amps, ect). there are many options on wiring your amp and depending on the options on your subs such as dual voice coils, you have a really good chance to get the sound you are looking for if you just do a little homework and make the most of your entire audio system. dont make the classic mistake and just toss your system together and start cranking up the power on your amp to get the sound you want because you could possibly loose your amp, subs, or worse like your cars electrical system. if you have to turn your amp past the three quarter mark, get a bigger amp because heat is going to be a big issue and sony amps will shut down into protect mode almost every time. get the specs for your equipment and see what options you have as far as bridged or single channel, how many ohms this amp can handle and different options to wire your subs such as series or parallel so that your amp is stable when pushing your subs and its not a drain on your battery every time you turn it on.

Feb 26, 2011 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Trying to wire to 2 dual-voice coil Memphis sub-wooffers in box

If both subs are dual voice coil, you can wire one voice coil to other voice coil on each sub. Do this by running the ground of each coil to the ground of the other coil. Do the same for the positive. After doing this on both subs, you should have one ground and one positive per sub. Hook one up to the left channel of amp and one up to the right....This should work for you. If your amp plays for a while then goes into protection mode, then it cannot handle the ohm load.

Jan 01, 2011 | Kenwood KAC-728S Car Audio Amplifier

1 Answer

Speaker or amp?

your running too low impedence, and yes its cuz of your sub wiring. How to wire it depends if its 2ohm dual voice coil, or 4ohm dual voice coil, so i'll explain both. O.K. first of all i hope its 4 ohm so you can get max power from your sub. If it is 4 ohm dual voice coil connect + to +, and - to - on your speaker, then to connect it to your amp, splice a wire into the wire running from + to + and connect it to your amp's + terminal. Do the same with your - wire. If its a 2 ohm dual voice coil, connect the + from one set of terminals on the speaker, to the - on the other terminal. Then to connect it to the amp, plug a wire from the open + terminal on the speaker and connect it to the + plug on the amp, and do, connect the empty - to the - on the amp. Good luck and if you have any questions don't hesitate to ask...

Sep 20, 2009 | Car Amplifiers

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Hello matt225281.

Since the Tantrum only lists specifications into a 4ohm load, you need to make sure that the final impedance of your DVC sub is 4ohms or greater. So a sub with either 2ohm or 4ohm voice coils needs to have the coils wired in series with a jumper between the positive of one coil to the negative of the other and the remaining positive and negative to the amp speaker terminals. Paralleling the voice coils will result in a 1ohm or 2ohm load to the amp and it will overheat, go into protection or possibly fail completely.

If your sub has 2ohm voice coils, the load will be 4ohms which allows the amp to produce maximum power. The final impedance with 4ohm voice coils will be 8ohms. The power will be reduced, but the amp will operate without overheating.

Either set of the speaker terminals on the amp can be used. They are connected internally so it doesn't matter which one you use.

Hope this helps.

Jul 10, 2009 | Phoenix Gold Tantrum 1200.1 Car Audio...

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I have a PHOENIX GOLD RYVAL V1502 amplifier and trying to hook it up at 2 ohms as it describes it can be 450watts x2 at 2 ohms running wires from bridged positive and negative to the first sub then two...

Hello mgonzalez390,

It sounds like the amp/subs impedance is not matched. According to the published specifications for the V1502 amp, it is only stable in bridged mode down to 4ohms, not 2ohms. You need to get the final impedance that the amp sees up to at least 4ohms or it will continue to shut down and eventually fail completely.

If your subs are dual voice coil and can be rewired so that each sub has an impedance of 8ohms, then you can safely parallel them to the amp like you have described. If they are single 4ohm voice coils, then you have 2 choices. Connect one sub to each channel or if you want to bridge the channels, then wire the subs in series, not in parallel. Wire the positive bridged terminal from the amp to the first sub positive, connect a jumper from the negative of that sub to positive on the other sub, and then the negative from that sub back to the negative bridged terminal on the amp. This wiring results in an 8ohm load to the amp and it should work OK without shutting down. But the power to each sub will actually be less than if you wire them separately to each channel.

Hope this helps.

Jul 08, 2009 | Car Amplifiers

2 Answers


Have you checked to see if your subs voice coils have shorted. That could cause the amp to heat up, on rare occasions the protection lights don't work. Rare, but possible.

Oct 08, 2008 | SPL Phantom DK2-1000 Car Audio Amplifier

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Amp. Audiobahn a2300hcx

If the subs are dual 4 ohm voice coils and if your amp is good down to 1 ohm, your best bet is:
  1. Connect the voice coils in parallel ("+"s together, "-"s together). This will make the impedance of each sub 2 ohms.
  2. Connect the subs in parallel.
  3. Bridge the amp to one channel.
This should max the amp out at 2400W, which means about 1200W per sub.

If your subs are single 4 ohm voice coils, do the same steps, but you'll only be able to load the amp to 2 ohms, which means about 600W per sub.

Also keep in mind that box size, type, and quality make a big difference in how subs sound.

Mar 20, 2008 | AudioBahn A2300HCT Car Audio Amplifier

2 Answers

Is it enough

Audiobahn subs are not too powerful and they can not handle too much continuous RMS, be careful they will heat up and tear off the voice coils off ur subs. run about 100 - 150 RMS at 75 HZ to each sub and keep the gains at about 3/4 this way you will avoid blowing out your subs. It also depends on the amp? What kind of amp is it?


Let me know if you wish. Otherwise

Oct 21, 2007 | MA Audio HK4000D Car Audio Amplifier

1 Answer

Voice coils

if you push a sub too hard for too long the varnish on the coil windings will melt, causing parts of the coil wires to short toghther. This will change the impedance of of sub (or speaker). Since the speaker is hooked up to the amp and the amp requiring a steady impedance (usually 4ohm or 2 ohm). if the coils go bad , the impedance will change, the amp hopefully will go into a protect mode, if not the amp will damage itself. Warranty does not cover overpowering a sub of amp (if the can tell it was.) hope this helps.

Nov 10, 2006 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Amp protection problem

I run one sub on my Kenwood Amp also. It does over heat also. My conclusion is that we are both trying to push that one sub too hard and the amp is having to work really hard to make that sub do what we are asking. Also, not having enough power or a good ground will cause it to over heat. I am going to go with the voice coils are heating up though.

Sep 16, 2006 | Kenwood KAC-9102D Car Audio Amplifier

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