Wiring subs inverted on box

[jailhouseracer8 10+ year member]

I have heard pro's and con's on inverting the subs, so i figured what the hell, and try it. I have 2, 18" BL's, both Dual 1's. Im going to try to run the pair at 2 ohms, just to see how it sounds off of my treo ssx1500.1. How would i wire these outside the box? I know u run reversed polarity...or something to that affect, but if someone could find, or sketch up a lil easy diagram, id really appreciate it! thanks alot, Ed

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[Anniku989 10+ year member]

Just hook everything up normally, then at the amp, push the positive speaker wire into the negative, and visa versa

 

[audioholic 5,000+ posts]

Or find out if your h/u or processor has a phase adjustment. Many do these days.

 

[Immacomputer 10+ year member]

Or you can just leave it as the change will probably be minimal or non-existent.

 

[jailhouseracer8 10+ year member]

not sure if the headunit does have phase alingnment. The headunit is an alpine, cda-9885....thanks for the input guys

 

[helotaxi 5,000+ posts]

As long as all are inverted then you can just wire everything normally.

 

[18inchjeepin 10+ year member]

I have 2, 18" BL's, both Dual 1's. Im going to try to run the pair at 2 ohms, just to see how it sounds off of my treo ssx1500.1.

um check your math I'm getting 4 ohms or 1 ohm or 0.25 ohm

 

[blackbonnie 5,000+ posts]

yeah you wont be able to wire them to 2 ohms

 

[Anniku989 10+ year member]

I think he meant 2ohm per sub, 1ohm total

Or so I hope... //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[audioholic 5,000+ posts]

As long as all are inverted then you can just wire everything normally.

I know what you mean, but your comment needs abit more explaining. Wiring both your inverted subs 'normally' will keep the subs in phase with each other, but you also need to account for relative phase between the subs and any other drivers in the system. I would not suggest running the subs in either polarity will not affect anything, many times it will.
Yes many times its in fact better to run the subs 'out of phase' with the rest of the system, and I always recommend trying it both ways for subs. But if someone were to remove their subs and invert them, assuming their wiring was 'proper' before inverting them, the polarity of the subs should definitely be reversed.

 

[jake760 10+ year member]

My BL 18 had a lot of mechanical noise when I tried inverted