yea that's what i'm not understanding either, the ohms confuse the **** out of me

you can use either a mono amp, 2 channel, or bridge the 2 channel amp so that it is mono.

 

Here is how you can mono the various dual voice coil subwoofers:

for two 2 ohm dual voice coil subwoofers: http://www.the12volt.com/caraudio/wo...s.asp?Q=2&I=22

for two 4 ohm dual voice coil subwoofers: http://www.the12volt.com/caraudio/wo...s.asp?Q=2&I=42

 

Ok I found this Kicker amp, it's a mono amp rated at 750W RMS x 1 @ 2 ohms, so that would mean 375W x 2 @ 2 ohms, right? Because that would be perfect and I would order it asap.

 

http://www.hifisoundconnection.com/S...39246241238241

 

No cause you can't split a mono channel amp without changing the load (ohms). If you put two subs onto it which is what I am assuming you are planning on doing, depending on what subs they are and how they are themselves configured, then you will change the load on the amp respectivly. And of course, changing the load will change the power output of the amp.

Do a little research into ohms law and so on so you understand what pieces work and why. Once you understand the math, it will all make sense.

Addictions spot on when he says to plan your system from the start. I learnt all the terms, formulas, and laws involved and using this knowledge I planned my system from the start to finish. Your hu needs to be able to support your selection of amps, which needs to be able to support your selection of speakers and your selection of wiring needs to be able to support the whole lot. There needs to be a lot more though put into it than just 'what subs and amps should I get'?

 

Sigh

Ok. from the top. A mono amp has 1 channel only. and a 2 channel amp has 2 channels. and Im sure you can figure out how many channels a 4 channel amp has.


An Ohm is a measurement of resistance; how much something resists an eletric charge.

when hooking up speakers, GENERALLY, they are all 4ohm speakers, and USUALLY, most amps are rated to handle 4 ohms of resistance per channel.

However, if you have a Dual Voice Coil sub, then it has esentially two 4ohm speakers in the same sub. If we refer to the laws of adding resistance:

In parallel, which is where all the resistor's (speaker's) positive terminals hook together, and all the negative terminals hook together, the laws of adding resistance is 1/Ra = 1/Rb + 1/Rc.
Ra is our total resistance, the resistance that will be placed on that one channel of the amp, and Rb and Rc is the resistance of each speaker. So if Rb and Rc is both 4 ohms, then Ra is 2 ohms.

In series, where the speakers are wired posative to negative to posative to negative, the law is as follows: Ra = Rb + Rc. This would obviousily generate 8 ohms of resistance. So if both of the voice coils in a DVC sub are 4 ohms, they can be wired to generate a total of 2 ohms or a total of 8 ohms.

Using the same formulas, you can figure out the total load on an amp running more than one speaker per channel.

It will say on the amp if its rated at 4 or 2 or 1 ohms per channel, and the respective power output. This is fixed and cannot be altered. so when you select your speakers or amp, you need to consider this.

You need to do some research into the laws of adding parallel and series resistance.THEN go and PLAN your system from top to bottom, THEN go out and buy it. otherwise you are just gonna end up with a whole bunch of parts that dont fit together or are not functioning at 100% or even worse, pose a serious fire threat to your car.

 

Thanks for that help, but I got a buddy of mine to go with me to future shop, I picked up a Exile 1200x.1 amp for 300$. It's rated at 400rms x 2 @ 2 ohms, and its got 2 channels, so its perfect to power my subs. Also got 4 gauge wire, remote wire, and ground wire for 60$. I just need to find a nice cap, hook up the wiring, wait from my subs to arrive from ebay and Dynamat my car, and my sound system will hopefully turn sum heads lol.

I got a break down on car audio today from my buddy

 

*And a new JVC deck with sub control