Wiring three dual 1 ohm subs

[ancorp 10+ year member]

Hey guys so I need to figure out the best way to wire three dual 1 ohm subs to a 1.5 ohm final load (It's going on a pair of strapped amplifiers so I cannot go below 1 ohm, so 0.66 ohms is not an option).

I can either put each woofers coils in parallel, making them 0.5 ohms per woofer, and then series all three woofers to 1.5 ohms.

OR

I can series one coil from each woofer to give me 3 ohms (and the other coil from each woofer for another 3 ohms) and put both 3 ohm sets in parallel to get 1.5 ohms.

See my crude drawing below:

View attachment 26548918

Click to read more...

 

[mylows10 5,000+ posts]

Each sub. Jump coil one pos to coil 2 neg then all 3 subs pos together and all 3 subs neg together then to the amp Should be 1.5

 

[ancorp 10+ year member]

Each sub. Jump coil one pos to coil 2 neg then all 3 subs pos together and all 3 subs neg together then to the amp Should be 1.5

If I jump coil one pos to coil 2 neg as you said, I'd be wiring each sub in series - so each will be 1+1 = 2 ohms. When when I put all 3 subs together it'll be 0.66 ohms.

 

[Slobalt]

mylows is right

Subwoofer Wiring Diagrams

 

[mylows10 5,000+ posts]

If I jump coil one pos to coil 2 neg as you said, I'd be wiring each sub in series - so each will be 1+1 = 2 ohms. When when I put all 3 subs together it'll be 0.66 ohms.[/Each sub at .5. Then in series to 1.5

 

[bbeljefe]

Don't wire subs to different impedances. You can either wire them to 6Ω or 1.5Ω gross impedance. And that will either be 3Ω or .75Ω per amp.

Honestly, if you're strapping two amps on three D1 subs, the equipment you have should be of high enough quality to run at .75Ω.

 

[ancorp 10+ year member]

Of course I'm not going to wire two to 2 ohms and then one to 0.5. The question is whats the best way to get 1.5 ohms? All subs wired to 0.5 and then in series, or one coil each in series at 3 ohms, parallel to the other set of 3 coils to make 1.5 as well?

The amps ran 0.5 each all summer last year with a pair of these dual 1 subs wired to 1 ohm strapped, so they will be fine with 0.75 each.

 

[ancorp 10+ year member]

Nobody has any ideas? Still need to decide between the two ways of wiring to 1.5 ohms.

 

[UGHH]

http://www.the12volt.com/caraudio/woofer_configurationsm.asp?Q=3&I=12#results

Pick one

 

[Dmac1991]