Question about Kenwood KAC-9102D Car Audio Amplifier

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Ohms if i have two 3.3 ohm subs what will be the impedance

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If you put the 2 in series you will get 6.6 ohm's of impedance or if youput them in parallel you will get 1.65 ohm's of impedance.

Posted on Nov 30, 2006

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What is the best way to wire two kicker comp r 12' s to a two channel amp for max bass?


First, you need to know whether you have the 2 ohm DVC subs or 4 ohm DVC subs. Second, you need to know the minimum impedance the amp can handle (most are 2 ohm, some are less). Putting two voice coils in parallel will cut the total impedance in half (e.g. 2x 4 ohm voice coils in parallel = 2 ohms total). Putting subs in parallel will also cut the impedance in half.
At one end of the spectrum, you could put the 2 ohms DVCs in parallel, then parallel the two subs, and bridge the 2 channels of the amp. That would put 0.5 ohms impedance on the 1 bridge amp channel. If the amp can do 0.5 ohms x 1ch, do it. Otherwise, you may have to run the subs on separate channels.

Oct 23, 2015 | Kicker Car Audio & Video

1 Answer

What kind of amp can adequately power P112 S8 subs


you shouldnt run it at 8 ohm it shows what ohms it can handle . to run it at 1 ohm you would need 2 subs to do this. and no i wouldnt run an 8 ohm sub on the amp.

Aug 23, 2012 | Rockford Fosgate Punch Stage P112 S8 Car...

1 Answer

How come my two subs wont get powered with a 12 ohm load. is it to high of a load. they are 12


HelloCheck the output impedence [indicated in OHms]]. You can get it from its manual. If it is designated as; 8OHms for example; you can connect one 8OHMs speaker direltly, or two 4 OHMs speakers in serieal connection. Likeways, if the output impedence is 6OHms, you can connect one 6OHms speaker direltely, or 2 12OHMs speakers in parellel. Just see, when we connect thow speakers in serieal, the impedence will be the sum of both speaker impedences. if we connect the same in parellel, the impedence will get halved. OK.

Dec 19, 2011 | Car Audio & Video

1 Answer

I have the MRP-M1000 amp. I want to hook up 2 alpine subs to this amp. Which alpine subs would be the best for this amp? Please be specific with ohms and watts.


Your best bet will be to wire 2 subs in parallel to the amp. Each sub should be rated for at least 300 watts rms at 4 ohms. This will give you a total impedance of 2 ohms, and your amp will put out 600 watts rms at that impedance. That way, each sub will receive 300 wats rms. I would not recommend wiring subs in parallel, as you will need two 1 ohm subs at 300 watts rms, which are harder to find and will be more expensive. A parallel circuit is the most efficient way to do it.

Feb 23, 2011 | Alpine MRP-M1000 Car Audio Amplifier

2 Answers

I have 2 positives and 2 negatives on back of my alphasonik sub, do i connect amp to one side or both sides?


Hello gaz69,

Your PSW815 has 2 ohm dual voice coils allowing you to better match the impedance to your amp. Each voice coil is 2 ohms. If you wire them in parallel (both +'s together and both -'s together and then to the amp terminals), the sub presents a 1 ohm load which is too low for most amps. Wiring the voice coils in series (one + to the other - and the remaining + and - to the amp terminals) results in a 4 ohm load.

This link shows the wiring diagram for both options. If you know for sure that your amp is 1 ohm stable, use Wiring Option #1. If the amp is not 1 ohm stable, use Wiring Option #2.

Hope this helps.

Aug 09, 2009 | Alphasonik PSW815 Car Subwoofer

2 Answers

Hooking up the speakers


Well, this means you have dual voice coil subs. These subs are for running one sub in stereo mode( meaning you can hook up a right and a left channel to one speaker). In your case you are using 2 subs, which all you have to do is run a jumper wire from one side of the sub to the other. Take your (+) and hook it up on the (+)on one side of the sub and take your (-) and hook it up on the (-) on the other side and run a wire from the remaining post to the other. And do the same thing on the other sub.

Aug 09, 2009 | Blaupunkt Memphis MP66 CD Player

1 Answer

Subwoofer Dual voicecoil wiring


1 ohm will draw too much current.those are designed for a 2 channel 2 ohm drive for each sub.running 4 ohms will be easier on the amplifier and since impedance is not constant it may run 3 ohms at some frequencies anyway. another solution if your power amp is bridgeable....put the coils in series on each woofer making 4 ohms.then parallel the two 4 ohms to make 2 ohms and run the amp in bridge mode at 2 ohms.since bass is omnidirectional,you can do it

Jun 13, 2009 | PPI DCX-500.2 Car Audio Amplifier

1 Answer

Ohm calculations; 4 and 8 ohm sub woofer?


+ output from amp to + input of 4 ohm to + input of 8 ohm AND - output from amp to - input of 4 ohm to - input of 8 ohm is a parallel circuit = 2.66 ohm impedance load for amp
+ output from amp to + on 4 ohm - on 4 ohm to + on 8 ohm - on 8 ohm to - of power amp is a series circuit = 12 ohm impedance load for amp. Clear as mud??
Clear as mud?

Jun 11, 2009 | Jl Audio 12W0 Car Speaker

1 Answer

Need help


Hello bully_bread,

Your amp will be powering the sub at 4 ohms.

The impedance or "load" that the amp sees is determined by the number of voice coil(s), the number of sub(s), and how they are connected. Whatever that final load, it is the impedance or "ohms" that the amp is supplying power at.

A single 4 ohm sub with a single voice coil cannot present a 2 ohm load. However, a sub with dual 4 ohm voice coils wired in parallel will present a 2 ohm load.

Here's a link to Rockford_Fosgate's "wiring wizard" where you will find all combinations of subwoofer wiring and the resulting loads.

http://www.rockfordfosgate.com/rftech/woofer_wizard.asp

Hope this helps.

Apr 13, 2009 | SPL Audio Phantom DK2-1000 Car Amp

2 Answers

Dual voice coil wiring to class d amp


The easiest way to think of wiring voice coils and subs is this:
  • Two items of the same impedance in parallel = Half of the impedance
    • 4 ohms in parallel with 4 ohms = 2 ohms
    • 8 ohms in parallel with 8 ohms = 4 ohms
  • Two items of the same impedance in series = Double the impedance
    • 4 ohms in series with 4 ohms = 8 ohms
    • 8 ohms in series with 8 ohms = 16 ohms
In this case, you want to wire two subs, each with dual 4 ohms voice coils, so that the total equals 2 ohms. Your options are:
  • DVCs in parallel, 2 subs in series = 4 ohms
  • DVCs in series, 2 subs in parallel = 4 ohms
  • DVCs in parallel, 1 sub = 2 ohms
With two, dual 4 ohm subs, you can only have 1 ohm or 4 ohm total impedance.

Mar 16, 2008 | Car Audio & Video

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