How to Wire Up Subs?

[JohnD1079]

OK, i have a 1 channel 900w RMS Amp. It is 4 ohm stable.
I need to wire up two Subs two it that are 2 ohm stable that are cabable of RMSing 450w. My friend said he would do it for me but i dont have time to go over there at the right time and what not.

I forget how to hook it up. In parallel or series? If i was back in physics class i could figure it out, but i dont remember that well.

Do i just put 2 wires going to each sub coming from 1 terminal from the Amp?

[foamypirate]

Check this place out, they should have what you are looking for.

JLAudio

[Camurai]

Wire them in series. The amp will see them as a single 4 ohm load.

[JohnD1079]

so the wire should run like this?

(+) Amp to (+) Sub#1 to (+) Sub #2? And same thing for the negative?

[cvc7chris]

Idk man

but on mine i just hooked one amp

just sub 1 (+ and -) to amp (+ and -) and it kicks pretty good

that's how they were wired plus the other sub doesn't have wiring
so yeah

cheap hollywood shits i got

[OnBBS17s]

Idk man

but on mine i just hooked one amp

just sub 1 (+ and -) to amp (+ and -) and it kicks pretty good

that's how they were wired plus the other sub doesn't have wiring
so yeah

cheap hollywood shits i got

wtf...... this doesn't pertain to anything in this thread.

[cvc7chris]

wtf...... this doesn't pertain to anything in this thread.

then why don't you tell him how !

i don't know

[accord junkie]

series is the way to hook em up if u check out most audio sites like rockford fosgate u will find a wiring diagram on how to hook up in series or parallel but yeah u want to hook those subs up in series or get a amp that is 2 ohm stable u push more at 2ohm than 4ohm but thats just a suggestion im sure it will stil sound good and bang hard at 4ohm good luck www.rockfordfosgate.com

[UrDoneSRH]

im getting tired of posting this lol..

the12volt.com

look at wiring for subwoofers. series and parallel. its very simple.

if your hooking up 2 subs that are both 2 ohm stable, then you may have an issue with your amp. its 4ohm stable. resistance doesnt work how u might think it does.

you have 2 2ohm subs. so if you wire one in series it will be a 4ohm load, if you wire it in parallel it will be a 2ohm load. now if you have 2 subs at 4ohms going to a mono block amp you have a 2ohm load. theres your problem, if you going to run your current setup without overheating you need to reduce your ohmload or buy a amp that is 2ohm stable. but even then you would have to run your subs in series.

pardon me if im mistaken im working and it took me 15min to get this all typed out between work.

[JohnD1079]

well my Amp is the Kenwood KAC-9102D which is 4 and 2 ohm stable. 850W @ 2 ohms. Im not sure exactly the specs of my subs. But i beleive they are 2 ohm at 300w RMS with Max of 1200W. Im trying to wire them at at 425W RMS

All those sites say thst there is only single coil 4 ohms. I beleive mines are single coil 2 ohms. I could and am probably wrong

[UrDoneSRH]

just search the specs for it and find out for sure

[UrDoneSRH]

just search the specs for it and find out for sure

[Camurai]

OK, here it is in fairly simplified terms. Say you have an amplifier that's stable down to 2 Ohms. 2 Ohms is the lowest TOTAL NOMINAL impedance the amplifier is capable of supporting. Now, let's say you go out and buy yourself two 4 Ohm woofers. Fairly standard fare. You have two options. Depending on how the power output is on the amplifier, you can either wire the woofers in series, so the amp sees an 8 Ohm load, or you can wire them in parallel to make the amp see a 2 Ohm load. In essence, when you wire two woofers of equal impedance in series, you're showing the amplifier the sum of the impedance of both woofers. (Add them together.) If you wire them in parallel, you're showing the amp half of that impedance. (Subtract them.) The actual physics of it is a little more complicated than that, but that's how it works for all intents and purposes. Matching the total impedance of the subwoofer system to the lowest impedance rating of the amplifier is called impedance matching. Now, since your 900 Watt amp is rated as being stable down to a nominal 4 Ohms, and seeing that you have two 2 Ohm woofers, you would want to add the two woofer impedance ratings, or wire them in series. You can do so according to this fairly basic diagram below:



Run the speaker wire from the positive terminal of the amplifier to the positive terminal of one woofer. Run another wire from the negative terminal of that woofer to the positive terminal of the second woofer, then from the negative terminal of the second woofer to the negative terminal of the amplifier. That's series wiring in a nutshell.

[UrDoneSRH]

well put. what i was trying to get across exactly.