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Subwoofer wiring diagrams

Which wiring option will work best for you?

There are many ways to wire subwoofers and amplifiers together. The ideal setup is when subs and amps match their impedance and power capabilities to optimize performance. In this article, we'll help you find the best subwoofer wiring diagram for hooking up your system. 

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Just click on the "AMP" or "SUB" box below, answer a few questions, and you'll be presented with the wiring diagrams relevant to your search. You can find a glossary of terms below the interactive module.

Glossary of subwoofer terms


A Single Voice Coil subwoofer (or svc sub) has two wiring terminal posts, one marked positive and the other marked negative.


A Dual Voice Coil subwoofer (or dvc sub) has four wiring terminal posts, two positve terminals and two negative terminals. The extra terminals give you more options for wiring the speaker.


The impedance of a subwoofer coil is expressed in ohms. Impedance is the amount of electrical resistance, or load, a sub puts up against an amplifier's output. Subwoofer voice coils usually come in 2-ohm, 4-ohm, or 8-ohm impedances. The value is often found printed on the magnet, if you're unsure of what you have.

Series wiring and parallel wiring

These terms refer to two ways of routing the speaker wires to your subs to properly manage the overall impedance load. Whether you need to use a series wiring configuration, parallel wiring, or a mix of both, our diagrams will show you exactly the best way to wire your speakers. 

Note: When you wire dual voice coils and multiple subs together, the resulting total impedance is not always simple to figure out or practical to use.

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Amplifier output

An amplifier will put out more power through a low-impedance sub than it will through a high-impedance sub. But a lower impedance also means more stress on the amp. Some amplifiers can even drive a 1-ohm load safely, and achieve maximum output. Refer to your amp manufacturer or owner's manual to determine whether or not yours can handle a low-impedance load.

Bridged mode

Bridging an amp combines two amplifier channels into one, to get more power. The disadvantage of bridging is that bridged channels can't drive impedance loads as low as they can when unbridged. How to bridge the amp is usually indicated at the amp's speaker wire terminals. 

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All the wires depicted in the Subwoofer Wiring Diagrams are speaker wires. For wiring subwoofers, we recommend using wires of 12- to 16-gauge in size.

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Start building your bass system today

Now that you've seen how to wire subwoofers and amplifiers together, you can knowledgeably shop Crutchfield's extensive selection of subwoofers and amplifiers. We also carry amp wiring kits, speaker wire, RCA cablescapacitors, and much more.

Contact us by phone, chat, or email and an Advisor will help you get what you need. If you want to learn more about amplifier systems, check out our Amplifier Installation Guide.

Last updated 7/20/2021

    Posted on 9/17/2021

    I have a Rockford Fosgate P3S2D12 and want to connect it to my R.F. P1000x5 It will be the only speaker that I will be using the amp for. How do I wire the speaker and how do I connect it to the amp? There are sooo many different adjustments on this amp, which ones, (if not all), are relative to my set-up, and, aside from the GAINS adjustment process that I will be encountering , once I complete the wiring, what should all the various slider-type buttons be set to?

  • Tully from Kernersville

    Posted on 9/13/2021

    hi there. i have a skar 800 watt dvc 2 ohm. can i pair this with a 2 channel scar 800 watt that is stable at 1 ohm?

    Commenter image

    Buck Pomerantz from Crutchfield

    on 9/13/2021

    Tully, Without knowing precisely what amp and sub you're referring to, we can't help you with advice. If you want a question answered about a system, you must identify the gear by model numbers as well as brand names, so we can get the right information to you.
  • Joshua from Simpsonville, SC

    Posted on 9/5/2021

    Is there a way to wire 2 dvc 2ohm subs to 1ohm on a monoblock amp?

    Commenter image

    Buck Pomerantz from Crutchfield

    on 9/6/2021

    Joshua, Two DVC 2-ohm subs can only get wired together to form a 0.5-ohm load, a 2-ohm load, or an 8-ohm load.
  • Mando from Fort Stockton, TX

    Posted on 9/3/2021

    You can't click on either boxes on this page

  • Raul Rodriguez from Ochelata

    Posted on 8/25/2021

    Thank you so much! This is a very helpful site

  • Thomas from Winter Park

    Posted on 8/25/2021

    I have 2 12" 4ohm kicker comp VT running off a kicker 800.1 also have a 5 channel 660 kicker pushing my door speakers and 1 12" 2ohm kicker comp VT. Everything sounds great until I hooked up the third 12 to the 5 channel amp. Can you explain why? The 2 12" are in their own box under rear seats. Single 12" in it's own box up front

    Commenter image

    Buck Pomerantz from Crutchfield

    on 8/26/2021

    Thomas, You may have the front and rear subs playing out of phase with each other, cancelling out some of the bass sound inside your vehicle. Reverse the polarity of one sub and see if that improves the sound and bass impact.
  • Ben Jamin from Euless

    Posted on 8/23/2021

    Hi Mr Pomerantz, I am looking to power 2 6.5 inch door speakers, as well as two 6x4 speakers. 60w rms range . I will also need to power a 10 inch kicker comp c. I am looking at te Soundstream Picasso Nano PN5.640D which meets power requirements for the small speakers but the 5th channel will do 200 watts rms at 4 ohms and 350 watts rms at 2 ohms. my Subwoofer is 4 ohm. is there any way i can make this work?

    Commenter image

    Buck Pomerantz from Crutchfield

    on 8/24/2021

    Ben, I see no issues here, whether the sub's a DVC 4-ohm wired to 2-ohms or a SVC 4-ohm sub wired directly to the sub channel output.
  • Richie from Springfield

    Posted on 8/21/2021

    No matter what choice I choose for start with amp or start with sub, I always get a blank diagram after answering all questions....

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    Buck Pomerantz from Crutchfield

    on 8/23/2021

    Richie, There are a few gaps in the coverage that result in no wiring solution for the gear chosen. One way to straighten things out is to change your answer to the 1-ohm/2-ohm amp stability question to get to the relevant wiring diagram.
  • Kendrick Minion from Acworth

    Posted on 8/21/2021

    I have 4- (Kicker 44CWCD84 CompC 8 Inch 4 Ohm 200 Watt RMS Power and 400 Watts). I see the diagram for wiring them but how do figure out what size amp to buy.

    Commenter image

    Buck Pomerantz from Crutchfield

    on 8/21/2021

    Kendrick, Those four DVC 4-ohm subs rated for 200 watts RMS each will work well with an amp that can give them a total of up to 800 watts RMS at 1 or 4 ohms, like a Kicker CXA800.1T
  • Blaize Nourrie from Honolulu

    Posted on 8/20/2021

    Hi Buck, I want to install 4 Pioneer pro 6.5" 4 ohm mid range speakers (110w rms and 500w max each) as well as 2 Skar audio 3.5" 4 ohm super tweeters (150w rms and 250w max). What is a good amp to run these speakers and tweeters? Thank you in advance for your response!

    Commenter image

    Bruce Southall from Crutchfield

    on 8/21/2021

    Blaize, If you have a crossover for your speakers - high-pass for the tweeters, low- or band-pass for the mids - a 6-channel amp like a JL Audio XD600/6v2 will work. Otherwise you'll need an amp with onboard digital processing to match the signal to the different drivers, like AudioControl's D-6.1200.