How do i wire to .7 ohm?

[thekidrock 10+ year member]

hi i just had a quick question...i have two subwoofers with quad 1.4 coils...my question is how do i wire these to .7 ohm or what are my possibilities?

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[shaneb 10+ year member]

wow. lemme do some math and i'll get back to ya

thats a heck of a interesting thing, what kind of subs?

 

[thekidrock 10+ year member]

soundstream xxx's

 

[MisterGrubbs 5,000+ posts]

Quad 1.4, eh?

.35, 1.4, and 5.6

Speaking generally. I'm not doing hard math

 

[thekidrock 10+ year member]

they will be hooked up to 2 amplifiers so 1 to each. what can i wire each sub individually to?

 

[shaneb 10+ year member]

5.6 or .,35 per sub

 

[MisterGrubbs 5,000+ posts]

I would say the best solution would be 1.4 per amplifier...

Two of the coils wired to .7, the other two on the woofer wired to 2.8

Sub's final ohmload at 1.4 for the amp

 

[shaneb 10+ year member]

//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif this is kinda a fun "challenge"

what kind of subs are those?

 

[MisterGrubbs 5,000+ posts]

Soundstream XXX's

 

[thekidrock 10+ year member]

nice. they are soundstream xxx's. so how would i wire these? i am confused when it comes to wiring LOL!

 

[Linkz 10+ year member]

2vc in series x 4 wired in parallel will yield 1.4 ohm

4vc in series x 2 wired in parallel will yield 0.357 ohm

all in series would be 11.2 ohm

all parallel will be 5.714 ohm

for 1 woofer

2vc in series x2 wired in parallel will yield .714 ohm

all in series would be 5.6 ohm

all in parallel would be 2.857 ohm

Your best bet for .7 ohm load is to use one amp per sub.

 

[Pioneer~Saturn 5,000+ posts]

You can't do it...Just like trying to wire a pair of 2ohm DVC subs to 1 ohm, it can't be done with a single one of those subs on one amp (you could do it with a 2-channel amp though, just run two coils in parallel off of each channel)

 

[Linkz 10+ year member]

This should help. Please ignore how shitty looking it is. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

edit: Opps! Forgot my ground. Re-uploaded.

 

[Pioneer~Saturn 5,000+ posts]

How exactly does a pair of 2.8 ohm loads in parallel come to .714 ohms..?

 

[Linkz 10+ year member]

(1/2.8)*2

 

[Pioneer~Saturn 5,000+ posts]

It might just be the lack of sleep...//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif time for bed

 

[Linkz 10+ year member]

Yea it's time for me to sleep too...Almost 3am.

 

[thekidrock 10+ year member]

can anyone draw me a diagram of the 2 subs?

 

[Linkz 10+ year member]

can anyone draw me a diagram of the 2 subs?

If you must have it @ .7ohm then follow the diagram I posted above. 1 sub per an amp. It is not possible to wire both subs to .7ohm on the same amp. You would have to settle for 1.4ohm load. which would also be the diagram I posted. Except, that you would run the wire on the bottom + terminal across all 4 of the series circuits. As well as Wiring all of the - terminals at the end(top of pic) of each parallel circuit together.

 

[Linkz 10+ year member]

Here is how it would be wired.