BMW F02 and Car audio.

[Wicks]

Yes at least 1/0, more if you'd like.

Extra copper never hurts.

Each of your voice coils are 2 ohm and you have 4 (2per sub).

You are going to series each pair of coils together on each sub.

That means each subwoofer sums to 4ohms.

Then both subs are paralleled together for a resulting mono 2ohm final load.

[FreeZzy]

Yes at least 1/0, more if you'd like.

Extra copper never hurts.

Each of your voice coils are 2 ohm and you have 4 (2per sub).

You are going to series each pair of coils together on each sub.

That means each subwoofer sums to 4ohms.

Then both subs are paralleled together for a resulting mono 2ohm final load.

Can you make a picture to show me how i connect my 2 subwoofers in 2 terminals of amplifier (with ohm load and all that ... ) ? it's better because now I'm not sure to understand :s

[Wicks]

Yes at least 1/0, more if you'd like.

Extra copper never hurts.

Each of your voice coils are 2 ohm and you have 4 (2per sub).

You are going to series each pair of coils together on each sub.

That means each subwoofer sums to 4ohms.

Then both subs are paralleled together for a resulting mono 2ohm final load.

Can you make a picture to show me how i connect my 2 subwoofers in 2 terminals of amplifier (with ohm load and all that ... ) ? it's better because now I'm not sure to understand :s

That latest picture you posted is correct.

Use that.

I was just elaborating on how the final ohm load is calculated.

Use that picture and your equipment and you're good!

Have a DMM?

You can always check the final nominal resistance with that if you're unsure.

[FreeZzy]

I dont know what is DMM but I'm sure I don't have this ^^
But if the final load of each subwoofer are 2 ohm, amplifier running at 2 ohm or 1 ohm or another?
If I put 2 ohm on each terminal that's mean the amplifier is load at 2 or 1 ohm right ?

like this am i wrong ?

[Wicks]

Digital Multi Meter

Allows you to test voltage, current and resistance.

I would highly recommend getting one and trying it out.

Always nice to be able to test your system and know that everything is as it should be.

You're overlooking the drawing/picture and making it too complicated.

You correctly show each sub as a 4ohm load.

You're then connecting them to a terminal on the amp and then calling it 2ohms?

The wire has no effect so each sub should route to the amp terminals as two 4ohm loads.

The amp terminals are in parallel so the two 4ohm loads combine to one 2ohm final load.

Make sense?

[FreeZzy]

Ok I'll buy one.

Yes I'm calling each terminal on amplifier " 2ohm " and then I ask a question near the terminal of amplifier (amplifier running at 2 ohm or 1 ohm ?)

So if I understand, the amplifier works at 2ohm. this is the same thing as when connecting the subwoofer together like the picture from the12volts.com right?, that's mean I use all power of amplifier on both subs = 2500Rms right?

[Wicks]

Each subwoofer combines to a 4ohm load.

So why would you call it 2ohms (each) at the amp terminal?

It stays at 4ohms so therefore you have two 4ohm loads connected to a paralleled terminal.

That combines to a final load of 2ohms.

If the amp is rated for 2500Wrms at 2ohms that that power is transferred to the final 2ohm load which is made up of two speakers.

Therefore the 2500W is distributed evenly between both.

So each speaker gets 1250W.

[FreeZzy]

Ok i understand now thanks for your help. And yesterday i buy a multimeter

[FreeZzy]

Hi, somebody can help me to make my subwoofer box ?

Before i did my box from RE AUDIO website but i think it's not the best for make a good subwoofer box, so that's why i need your advice.