Possible to wire three 4ohm DVC subs to 1ohm..or close??

[95lincdog]

I currently have 2 12" 4ohm DVC subs. 400rms each, wired to 1ohm. My amp is 1ohm stable. But my monoblock amp is 1200rms, and the sub magnets get pretty hot. I have another 12" 4ohm DVC sub, I was wondering if I can wire that in to help spread out the wattage. BUT....my amp has a major wattage loss if I go up in ohms. Can I wire 3 subs to 1ohm? I googled it. Didn't find anything

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[The Camry]

They get hot because the wattage your throwing at them. Turn down your gain.

also make sure your not clipping which can make them heat up real fast.

http://www.crutchfield.com/S-UXRzJzA1yne/learn/learningcenter/car/subwoofers_wiring.html

 

[Jepalan]

Three DVC 4 Ohm subs can be wired as 0.67 ohms, or 2.67 ohms

Turn down your gains if things are getting hot

 

[negolien]

This site has all the calculators and stuff you'll need for figuring out audio.

Car Alarm, Car Stereo, Mobile Video, and Cruise Control Info for Installers

 

[95lincdog]

I played around with a few ohm calculators. Three 4 ohm DVC subs, two subs wired to 8 ohms and one wired to 2 ohms equals 1.33 ohms. Is it ok to wire subs differently to the same amp? 2 subs are identical. One looks more powerful from magnet size (3rd sub is unlabeled) any ideas on how I should wire these?

 

[Popwarhomie 5,000+ posts]

No.. Just no.

 

[The Camry]

you never mismatch subwoofers. Ever. You either have 3 of the same exact woofers or you dont do it at all.

Why are you trying to run three? Whats your main goal? What kind of vehicle are you putting this in.

 

[adulbrich 5,000+ posts]

Don't mess with wiring different subs together.

 

[95lincdog]

you never mismatch subwoofers. Ever. You either have 3 of the same exact woofers or you dont do it at all.
Why are you trying to run three? Whats your main goal? What kind of vehicle are you putting this in.

More cone area. Spread the watts out a little. My amp is a little strong for my current 2 subs. It's a 95 lincoln town car, trunk space isn't an issue. Mainly I was just curious if u can do it like that. So if I did have 3 identical subs, can I wire two at 8 ohms and one to 2 ohms and run at 1.33?

 

[adulbrich 5,000+ posts]

More cone area. Spread the watts out a little. My amp is a little strong for my current 2 subs. It's a 95 lincoln town car, trunk space isn't an issue. Mainly I was just curious if u can do it like that. So if I did have 3 identical subs, can I wire two at 8 ohms and one to 2 ohms and run at 1.33?

No..

They wouldn't see the same power. Don't ghetto rig stuff like that. Do you sell stuff on craigslist? Lol

 

[wew lad 5,000+ posts]

Ohm's law - Wikipedia, the free encyclopedia

Ohm's Law

We've all gotta learn it eventually

 

[Jepalan]

More cone area. Spread the watts out a little. So if I did have 3 identical subs, can I wire two at 8 ohms and one to 2 ohms and run at 1.33?

No. You want identical subs wired identically. Otherwise power will not be split equally and subs will not blend properly.

In your example the sub that is wired to 2 ohms would receive 4 times as much power as the other two subs.

Just don't.

 

[Jepalan]

Before you ask, here is the explanation why the 2 ohm sub would receive 4x the power of the other two...

Ohm's Law says: P = V^2 / R

Let's assume your amp is running at a volume such that it is putting out 40 V-RMS

All three subs that are wired in parallel will see the same voltage (40V-RMS) across them.

The 8 ohm subs will receive P = 40^2 / 8 = 200 W RMS

The 2 ohm sub will receive P = 40^2 / 2 = 800 W RMS

(All this assumes your amp can put out 1200 W RMS, but doesn't matter, the example scales linearly)