IMPORTANT QUESTION

[amariga09]

This might sound really dumb, but i'm tryin to learn a little ..... for example if you have a 4 ohm sub with 600 rms .. and your trying to match up an amp to it ... do you look at the amps 4ohm rms or 2ohm rms????

[enemyofsilence]

if your sub is single voice coil, then you look at the 4ohm rms in the amp. if your sub is dual 4 ohm voice coil, then you look at the 2ohm rms.

[CaptainzPlanetz]

This might sound really dumb, but i'm tryin to learn a little ..... for example if you have a 4 ohm sub with 600 rms .. and your trying to match up an amp to it ... do you look at the amps 4ohm rms or 2ohm rms????

Is it a single 4 ohm sub or a dual 4 ohm sub?

EDIT: I just got Ninja'd

Edited July 3, 2009 by CaptainzPlanetz

[amariga09]

Is it a single 4 ohm sub or a dual 4 ohm sub?

EDIT: I just got Ninja'd

it's a dual 4ohm

[BulletInjection]

you gotta look at the 2ohm rms then because when you wire them they will have a 2ohm impedence

[amariga09]

you gotta look at the 2ohm rms then because when you wire them they will have a 2ohm impedence

So is it better to get a dual 4ohm or a dual 2ohm sub

[BulletInjection]

So is it better to get a dual 4ohm or a dual 2ohm sub

Depences on the amp you choose, if you get a dvc you will need an amp that will give you the correct rms at your ohm load. I have a dvc 2ohm and it is wired parallel to give me 1ohm load but if wired in series will give you a 4ohm load. Since at 1ohm I find an appropriate amp that is 1ohm stable that will give me the correct rms for my application

[amariga09]

ok so if I would get two 12 inch subs that are dual 4ohm at 900rms each .... can i get a mono amp that says 1*1700 w @ 2ohm ... would that be ok

[BulletInjection]

ok so if I would get two 12 inch subs that are dual 4ohm at 900rms each .... can i get a mono amp that says 1*1700 w @ 2ohm ... would that be ok

This website will teach you a lot, you can enter in all your information and it will make the calculations for you basically.

http://www.the12volt.com/caraudio/boxcalcs.asp

[siucsaluki11]

I wish i knew these forums existed when i first got my stereo a year and some months ago now. I wouldda know that for the 2 dual 2 ohm subs i had i needed either 2 amps that were one ohm stable that put out 500w RMS at 1 ohm or 1 2 ohm stable amp that put out 1000w RMS at 2 ohms, lol. (or just buy the D4 subs, lol)

ANYWAY

Use the calc on the12volt.com It will help you alot. If you get 2 D2 subs you will end up with a .5 ohm or 2 ohm load if wired to one amp. D4 subs will give you a 1 ohm or 4 ohm load if you wire 2 subs to the same amp. D2s can be wired to 1 or 4 ohms individually while D4s can be wired to 2 or 8 ohms individually.