need help, best config for 3 dvc 4 ohm subs???

[99amgc43 10+ year member]

I have three dvc subs that are 4 ohm each.

I am trying to run this to an old school 2 channel crossfire CFA30hc amp. It states I can run it in stereo/mono mode (one sub to each channel, then one sub in bridged mode sharing only - or + on each channel). Or should I wire them all together? which would give me the most power and still be safe?

the specs on the amp are as follows:

its a switchable high power and high current amp.

high currrent is stable down to .5 ohms stereo and 1 ohm mono

high power is stable to 1 ohm stereo and 2 ohms mono

power in high current/ high power:

2 ohms- 120x2/210x2

1 ohms- 210x2/320x2

.5 ohms high current- 320x2

mono/bridged in lowest load possible in mono- 640x1

How should i wire these 3 subs safely with most power? please help

Click to read more...

 

[johnecon2001 5,000+ posts]

this is the wiring option that will work for you using all three subs.

 

[stones 10+ year member]

 

[99amgc43 10+ year member]

that doesnt help, these are dual 4 ohm subs

 

[99amgc43 10+ year member]

help me out, is my math all messed up to configure the load or what? i need either 1 ohm or 2 ohm load to get the most out of my amp

 

[99amgc43 10+ year member]

http://www.msnusers.com/_Secure/0VQAAAPIZiHkECNUrrGaRLjD1lezO85m4YdeZGjFehOkpuIcQEoVU*Yta8hlZtGewK4lCZdai5fqAkZuHVgqxJaI!18LpHgUAHZ8O9IQookCM2Dm73QtYzqCYcFBzlXoP/34ohmdvc267ohm2ov.gif?dc=4675556106804490652

 

[revrider1 5,000+ posts]

If you want a 1ohm load just parellel everything. The coils on the subs and then parellel the subs to each other.

 

[revrider1 5,000+ posts]

My bad thinking about the wrong configuration ^^^^^^^^^^^^//content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

 

[revrider1 5,000+ posts]

this is the wiring option that will work for you using all three subs.

This would probably be the best way to go.

 

[99amgc43 10+ year member]

did u see the link? i wanna know if on a dual 4 ohm sub, if you wire it parellel, does the amp see it as one 2 ohm sub in the equation, or 2 4 ohm subs... cuz ill have the other two wired in series each ( making it 8 ohm per sub for two subs).. depending on how you put it in the equation, it can make either a 1 ohm load, or 1.5 ohm, or if you take the average of the 3, its a 2 ohm load. HELP!!!

 

[revrider1 5,000+ posts]

I dont really understand, but I will try no matter how you wire the subs the amp will see the impendance load on the last sub going into the amp.

 

[99amgc43 10+ year member]

i didnt get what u just said, lol... but can you peep the link and tell me what load the amp will see if i wired it the way in the pic

http://www.msnusers.com/_Secure/0VQAAAPIZiHkECNUrrGaRLjD1lezO85m4YdeZGjFehOkpuIcQEoVU*Yta8hlZtGewK4lCZdai5fqAkZuHVgqxJaI!18LpHgUAHZ8O9IQookCM2Dm73QtYzqCYcFBzlXoP/34ohmdvc267ohm2ov.gif?dc=4675556106804490652

 

[revrider1 5,000+ posts]

Kind of confusing, but I would figure 1.5ohms. I have never wired anything like that before though.

 

[stones 10+ year member]

i didnt get what u just said, lol... but can you peep the link and tell me what load the amp will see if i wired it the way in the pic
[url="http://www.msnusers.com/_Secure/0VQAAAPIZiHkECNUrrGaRLjD1lezO85m4YdeZGjFehOkpuIcQEoVU*

That wont work, the subs need to provide an equal amount of resistance or the power will not distrubute evenly among the woofers, electricity takes the path of least resistance so the two woofers wired at 8ohms will recieve less current then the 3rd which is wired for 2ohms. Meaning the one sub will pound to beat hell while the other two just stroll along.

Im pretty sure your stuck with 2.67 ohms.

 

[99amgc43 10+ year member]

SUCKS, thanks though