how do i achieve a 1 ohm load on 10 10s

i have 10    2 ohm DVC 10"s and i would like to achieve a 1 ohm load over them. can anyone give me some help.

So you want to use TEN (10) woofers to a single amp?

Well you can't sorry.

So the options are two amps with 4 woffers at 1ohm.
Ten amps with one woffer each at 1ohm
Or
Three amps with 3 woofers each at 1.3 ohms.

These are the standard options, other configurations are not recommended..because wiring DVC woofers in series causes distortion.
Take your pick and I'll post the exact wiring config, but those are your options

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The best I can do for you with the equipment you have is as follows.  Parallel the coils of each woofer.  For a 1 ohm per woofer load.  Here comes the big can of worms.  Series the left 5 woofers for a 5 ohm load.  Do the same for the right 5.  Then parallel the left and right for a 2.5 Ohm load.   That is the only equal power per voice coil option I can think of.

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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

Are we talking about car audio?   If you have preselected 10 subs then you have to configure amp(s) to properly power them. If your ohm/#ch is preselected then you limit the quantity of subs to properly meet that requirement. If this is a science project, then thats a different story.


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This is what I do for FUN!

sorry let me clarify a few things.       i have ten 10" concept audio subwoofers.  i got them on a deal from a friend for $200 so i couldnt pass it up.    im not sure if they are dual 2 ohm voice coil or dual 4 ohm voice coil.   i know that makes a difference in achieving the 1 ohm load. but i am pretty sure they are dual 2 ohm.    i am open to only using 8 of the 10 due to the fact that i can use 2 amps( 1 amp per four subs) and save the other two for replacements in case of a blown woofer. i hope that helps.                                  also if anyone could help me identify whether they are dual 2 ohm or dual 4 ohm i would greatly appreciate it.  there are no labels on the woofers so i cant tell.    they are black on the front with the word concept in silver. the magnet is large, chrome, and says concept on one end and C on the other.   thanks

Wire each sub in series. = 4ohm each sub.
Wire 4 woofers this way and parallel them.= 1ohm

Repeat for another 4 subs.

Just make sure you DO have dual 2ohm subs.


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You will have to use an ohm meter to figure out if they are 2 ohm or 4 ohm coils.

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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

You will need a digital multi meter to measure the voice coils on the woofers. They will range from 1.8ohms to 2.2ohms if they are 2ohm speakers.
Set the meter to OHMS or a horse shoe looking symbol, and touch the meter wire to the + and - of each coil.

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thanks very much icearrow.    im sure that will be helpful.

Once the speakers are all installed..... Check the " how to set your gains" section and you'll be fine. Using a test tone you can easly notice twhen the woofers change tone and that's the RMS limit.

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icearrow6 wrote:

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So you want to use TEN (10) woofers to a single amp?

Well you can't sorry.

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You're terribly wrong. It is perfectly acceptable to run any amplifier with "odd" impedances - meaning not an exact number such as 1 or 2 ohms. Now, it WILL be impossible for him to acheive the 1-ohm load he is asking about, but otherwise it is perfectly safe to run 200 woofers on a single amp.

icearrow6 wrote:

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So the options are two amps with 4 woffers at 1ohm.
Ten amps with one woffer each at 1ohm
Or
Three amps with 3 woofers each at 1.3 ohms.

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What's wrong with five 1-ohm woofers (that's paralleled voice-coils, by the way) wired in series for 5-ohms, paralleled with a second set for 2.5 ohms? Answer: nothing. Given the number of woofers he has, and the (granted) limited number of wiring options he has, this will offer the lowest possible output distortions, the highest amplifier efficiency, and the best headroom trade-off. It will also give him EXACTLY the same output in SPL as running 1-ohm. (Well, within a fraction of a dB, anyway...) It will also guarantee that no single driver will EVER receive enough power to exceed it's electrical power handling capabilites.

A second option would be this: Wire every woofer in series for 4 ohms. Parallel five 4-ohm woofers for .8 ohms... do that twice, then wire those sets in series for 1.6-ohms. You won't gain anything in SPL, but you'll sure gain distortion, and lose efficiency and damping!

icearrow6 wrote:

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These are the standard options, other configurations are not recommended..because wiring DVC woofers in series causes distortion.
Take your pick and I'll post the exact wiring config, but those are your options

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"Standard" is dangerous. I would "recommend" either of the above configurations any day of the week. There is no reason you can't run LITERALLY an infinite number of individual drivers off of one single amplifier. I have seen a system (back in the early 90's) with three-way systems in front and rear doors, the rear deck, and eight 12" woofers, all run off a single Orion 225HCCA - Yes, that's 26 drivers. It sounded like crap, (to me) but the amp didn't ever run hot, because the impedance was withing it's safe range.

Wiring DVC woofers in series adds no additional distortion, as the additional windings are on the same motor structure. There CAN'T be additional distortions. Now, wiring individual woofers in series CAN add small amounts of distortion due to the back-EMF acting upon them, but it's VERY minimal, and certainly not audible in subwoofer frequencies.

I've said it before, and I'll say it again: "All generalizations are false." Think outside the box, man!

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

I answered HIS question. The title says he's looking to wire ALL 10 to 1 ohm load. I answered "its not possible". I was not generalizing at all ! I was being specific to his question. So I stated the possible combinations to satisfy his request (1ohm).

I'm trying not to confuse this guy, and offer the simplest solution. I understand the MANY options for wiring.... But the title ask for 1ohm, not just "how to wire 10 woofers".



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haha. that guy that was giving you crap was an ass.    i did use an ohm meter and found that i have dual 4 ohm voice coils. not dual 2 ohm.    i was wondering though if i could just run one amp to all 8 in a Voice coils wired in series, speakers wired in parallel method and achieve the one ohm load over all 8 with one amp?

Yes. you can wire like you said to get 1ohm load to the amp.


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thanks very much!!!! i think i finally fixed my issue.   i saved you as a friend on the12volt.com so if i have anymore issues ill ask you. thanks

icearrow6 wrote:

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I answered HIS question. The title says he's looking to wire ALL 10 to 1 ohm load. I answered "its not possible". I was not generalizing at all ! I was being specific to his question. So I stated the possible combinations to satisfy his request (1ohm).

I'm trying not to confuse this guy, and offer the simplest solution. I understand the MANY options for wiring.... But the title ask for 1ohm, not just "how to wire 10 woofers".

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I think that this is a misunderstanding. The way you replied made it sound that you were saying that it is impossible to wire 10 subs up to a single amp. This is not true as haemphyst pointed out. So if all you were pointing out was that those 10 subs can't be wired to a 1 ohm load you are correct. It just sounded like you meant you can't wire up 10 subs period.

pcummings32 wrote:

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haha. that guy that was giving you crap was an ass.

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