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Amp Can i use this amp on a single 4 ohm sub or would i have to wire 2 in series?

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You can use a single 4 ohm speaker. Here's the manual:
Click here

Posted on Dec 31, 2007


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I have 2 2 ohm dvc alpine type r 12 inch subs. Each voice coil on both subs reads 2.5 on ohm meter. I need wireing diagram to hook up to a boss 2500 class a/b amp at 2 ohm

To have 2x 2 ohm subs wired up, they either need to be wired in series or in parallel. In series, they will total as a 4 ohm load to the amp (or 5 ohms if 2.5 each) and in parallel, they will be 1 ohm (may be closer 1.25 ohms I think).
If this is a mono block (single channel) amp, I can't see that you will be able to wire them for a 2 ohm loan. You may have to wire them in series to be a 4/5 ohm total as the amp probably won't be 1/1.25 ohm stable.

Apr 27, 2017 | Alpine Car Audio & Video


How to wire subwoofers correctly.

If you're ever unsure about how you need to wire your subwoofers to get the correct ohm load to your amplifier there are a few resources to help. Usually in the owners manual that comes with your subs and your amp they include a detailed ohm load calculator. First step is to determine what subwoofers you have. Common subs come in a dual 2 ohm or a dual 4 ohm version or a single 2 ohm or a single 4 ohm version. Next determine what ohm load your amplifier is rated at. Mono "subwoofer" amps usually are rated x amount of watts at either a 2 or a 1 ohm load. This means you need to purchase the correct subwoofer combination to match your amp. If youre purchasing 2 dual voice coil 4 ohm subs then to maximize an amp you should buy a mono amp stable at 1 ohm. and Dual 2 ohm subs would need a 2 ohm stable amp wired in series parallel. A great resource for a beginner is to go to and on the top of the page find the words "subwoofer wiring diagram" and click on it. This will bring you to a drop down menu where you choose the number of drivers "subs" or "speakers" you have and then you choose the impedence in the next drop down menu. Next you'll be provided with multiple wiring options. Good luck and never think you can't do it yourself. Once you learn it's very easy to retain.

on May 31, 2010 | Car Audio & Video

1 Answer

2 ohm amp to 2 10 inch dual coil 4 ohm subs how does it need to be wired

Is the amp a single channel? If so, the only way to connect the subs (without overloading the 2 ohm stable amp) is to wire each sub's voice coils in parallel (2 ohm) and then connecting the subs in series (4 ohms). If the amp is two channel, the subs can have their voice coils connected in parallel (as before) and then each sub connected to its own channel.

Apr 08, 2016 | Dual Car Audio & Video

2 Answers

How to connect HIFONICS BXI 2607 D watt at 1 ohm....

That's dependent on your subwoofers. You will need 2 dual 4 ohm subs wired in Parallel, a single dual 2 ohm subwoofer wired in parallel, a single dual .5 ohm wired in series. Or something similar.

Nov 20, 2009 | Hifonics BXi 2006D Mono Block Amplifier...

1 Answer

Want to bridge 2 channel amp to push single 4 ohm dvc sub

Hello k_rabbit89,

A 4 ohm DVC sub can be wired in series like you described for an 8 ohm load or the voice coils can be wired in parallel for a 2 ohm load.

If your 2-channel amp isn't stable down to 2 ohms when the channels are bridged (most 2-channel amps are only stable to 4 ohms when bridged), you do not want the voice coils paralleled. The amp will overheat, go into protection mode, and eventually fail completely. A sub with 2 ohm voice coils would be a better fit. That way, you could series the coils for a 4 ohm load and the amp would operate OK with the channels bridged into that load.

But anyway, for the best power from THAT amp to THAT sub, your best wiring solution would be to wire each voice coil to a separate channel. The problem with that is that the signal to each coil needs to be EXACTLY the same or you will have one coil trying to move the cone out while the other one tries to move it in. You can closely approximate identical signals on the output side by using the same input to both channels. Do this by using only one RCA connection (either right or left channel) from your head unit and split it with a "Y" cable.

Hope this helps.

Sep 12, 2009 | Car Audio & Video

1 Answer


I looked up that amp, it doesn't have a listing for 2ohms x1 but it has 2 ohms x 2 and its at 250watts. For this situation, I would recommend a different amp or different subs. Right now you are getting the most you can get out of your sub/amp combo, if you only have single voice coil subs. Which is common in the mtx preloaded boxes. Either you want an mono block amp stable at 2 ohms or 2 dual 4 ohm voice coil subs. If you got the subs you would wire the voice coils in series so you could get 8 ohms then the subs in parallel so you could get 4 ohms, which would be the best for that particular amp. Good luck.
-Andrew Hawkins

Aug 23, 2008 | Legend LA1490 - American Legacy Series 2 -...

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Can i wire 3 jbl gto1204d subs into 1 jl audio 500/1 amp

You can connect them in a series/parallel configuration. Put two of them in series and then connect the last one in parallel across the two in series. This would give you an impeadance of around 2.7 ohms. Only do this if your amp is stable at 3 ohms or less. I am not familiar with the specs of your amp. If your amp is only 4 ohm stable you can not do this.
This would also give you half the power on the two subs in series as the power for the one that is parallel. The two in series would be sharing the total output signal, where-as the one in parallel would get the entire output signal from the amp.
if you were to connect a fourth sub woofer in this configuration it could give you a 4 ohm load, by adding the fourth sub in series with the single sub that is in parallel. or in other words, yu have two sets of 2 sub woofers each in series. That gives you two 8 ohm loads (two 4 ohm subs in series is 8 ohms). Then you take the two sets of subs and parallel them (two 8 ohm loads in parallel equals 4 ohms).

If i had a picture to show you it would make sense, two subs in series that are in parallel with two subs in series.

May 12, 2008 | Jl Audio 500/1 Car Audio Amplifier

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

2 Answers

Speaker connections

This is a single channel amp that puts out about the same power at 4 Ohms or 2 Ohms. If you have two 4 Ohm single voice coil subs, then wire them parallel (both pos and both neg) to achieve 2 ohms. If you have two dual 4 Ohm voive coils, you want to do a series - parallel config to get to 4 Ohms (voice coils in series, then parallel the subs). Same with DVC 2 Ohm subs, series parallel = 2 Ohms. Do NOT go below two Ohms. You will blow the amp (actually, it'll do 1.5 Ohms). If you happen to have 2 Ohm single voice coil subs (not as likely) run them in series. Most amps will put out about twice as much power at 2 Ohms vs. 4, but this amp is designed to put out about the same. Hope this helps!

Feb 12, 2008 | Jl Audio 500/1 Car Audio Amplifier

2 Answers

Directed 1100d 2-channel amp

You will bridge the amp, and if the subs are all 8 ohm subs, you can probably wire them all in parallel, if they are all 4 ohm subs, you would wire then in series.

Oct 17, 2007 | Directed 1100d Car Audio Amplifier

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