Going to be running two BRAND NEW SA-8's in my new ported box. 2 vs. 4 ohms?

[prevail]

So, after MUCH research, (and a serious headache), I found a custom ported box for my F150 supercrew. I am curious as to what the advantages and disadvantages are of running either the 2 ohm or 4 ohm models.

(I know, newb Q., just trying to figure out exactly what to purchase)

I will be running an MTX JH600 for now (but will be upgrading to a higher quality 600-800 watts @ 4 ohm amp later, if I need to).

Thoughts, good people?

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[murph 10+ year member]

the amount of ohms you can run them at on your amp is the difference plug it in on here and see how to wire them up Subwoofer Wiring Diagrams

 

[Imtjnotu 5,000+ posts]

there is no advantage or disadvantage as long as u have an amp that can give them there rated power at either 2 or 4 ohms....

ohms to not make 1 subs better then another

 

[prevail]

Sadly, that didn't really help me figure out why to run 2's over 4's, or vice-versa, all other things (amp) being the same.

 

[prevail]

there is no advantage or disadvantage as long as u have an amp that can give them there rated power at either 2 or 4 ohms....
ohms to not make 1 subs better then another

So, given my setup as described, what would y'all reccomend?

 

[mylows10 5,000+ posts]

pics of the box ,here's mine i just built for my dc 8's

 

[murph 10+ year member]

2 sa-8 2ohms subs can be ran at 0.5,2, or 8 ohms on your amp

2 sa-8 4ohms subs can be ran at 1 or 4 ohms on your amp

the only difference between ohms is the stress on the electrical is less when running at higher ohms and amps are more efficient at higher ohms

 

[itsblown 10+ year member]

It means that buying the 2-0hm version will in the end mean more watts pushed to the sub then if you bought the 4 ohm version. it will(should) be louder.

 

[prevail]

I just got the exact opposite answer on another forum. Hmmmn...

 

[murph 10+ year member]

It means that buying the 2-0hm version will in the end mean more watts pushed to the sub then if you bought the 4 ohm version. it will(should) be louder.

not really his electrical probably can not support a 0.5 ohm load so his voltage would be low hence less power...

 

[IonRL205 10+ year member]

It depends on what amp you have. A lot of amps say x power @ 4 ohms, x power @ 2 ohms, x power @ 1 ohm

Depending on whether you have 4 ohm subs or 2 ohms, your wiring options will lead you to a certain ohm load. That certain ohm load then determines how much power your amp will put out. So if you wired your subs to 1 ohm, and your amp does 1000 watts at 1 ohm, you would be putting 1000 watts to your subs, but say you wired your subs to 4 ohms, and your amp does 250 watts at 4 ohms, you would instead be putting 250 watts to your subs.

Two DVC 4 subs - 1 ohm or 4 ohms are your wiring options

Two DVC 2 subs - .5 ohm or 2 ohms are you wiring options

Since your amp does it's most power at 2 ohms, get the dual 2 ohm versions so you can wire them to 2 ohms.

 

[Imtjnotu 5,000+ posts]

So, given my setup as described, what would y'all reccomend?

your amp is 2 ohm stable and does 600rms@2ohms

so get dual 2's and wire them in series as the picture describes

 

[murph 10+ year member]

If I were you I would get the 4ohm option so you can upgrade your amp in the future to a 1ohm stable amp to maximize your power

You stated you wanted to upgrade amps so it would be better to run it with less power for now and upgrade to a nice 1ohm stable amp later

 

[Oh6AcCoRd 10+ year member]

I had a jh600 on a Rockford t1 15. I really liked that amp.

Should be a nice setup in a truck for sure man. Good luck.

 

[prevail]

I have good, stable power (220 PB alt, primary and secondary battery, 0g power wiring, big 3, etc). The current amp is (now) just a temporary solution until I figure out my subs (as that RF was intended to be.) Primarily interested in SQ, but I'll take a bit o' SPL if I can get it clean...(yah, I know...)