Can you help with my wiring?

Ok, your post has two different models listed. Let's start with something you need to know about your amplifier. Is it one ohm or two ohm stable. This will make a difference. Also, whether your subs are single voicecoil (HFI12s4) or dual voice coil (HDI12d4).

Let's start with the easy scenario. Let's say your amp is two ohm stable and you have two single voice coil subs. It's simple. You go from the positive of the amp to the positive of both subs and the negative of the amp to the negative of both subs. This will provide a 2 ohm load to the amplifier, thus pulling all the power out of it.

Unfortunatley, if you have two dual voice coil subs, you won't be as efficient. You will only have the options of a 4 ohm load or a 1 ohm load.

This is where having a one ohm stable amp would come in handy. If the amp is one ohm stable, hook the positive of the amp to all 4 of the positives on the subs, and hook the negative of the amp to all 4 negatives of the subs. This produces a 1 ohm load.

WARNING!! If you have a 2 ohm stable amp DO NOT use the last wiring scenario. It will fry your amp.

Now, the last is a little trickier. This is for two dual 4 ohm subs. Follow closely. Hook the positive of the amp to one of the positives of each sub. (do the next step to both subs) Go from the negative of the voice coil that you hooked positive from the amp is hooked to, and hook that to the positive of the unused voice coil. Then go from the negative of that voice coil and hook to the negative of the amp. Make sure this is done on both subs. This will give you a 4 ohm load.

Hope this helps

Ok, for an 8 Ohm sub, it is advisable to get another 8 Ohm sub. wire them in parallel down to a 4 Ohm load. You would wire both + wires together, and both - wires together to yield a 4 Ohm load at the amp. Majority of the amplifiers on the market are designed to give more power at a lower impedence, or Ohm load. You just have to make sure that your amp will take a 4 Ohm load. Without knowing the model of the MTX amp, I can't give more advise. However, this should be able to give you and idea of where to start. The main problem is that you have a single 8 Ohm sub in the Kicker Comp.

To wire up a 2 ohm load depends on the subs. You will either need 1 sub rated at 2 ohms or 2 subs at 4 ohms wired in parallel. This website will help.
http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=2&I=41#results
You can also use 1 dual voice coil sub rated at 4 ohms wiring the same way you would the 2subs at 4 ohms. Good Luck

there are several ways, it all depends on the bass response you want, and with that, it also changes the ohms in the amp. i'm going to give you seval ways to hook them up. if you are running more than one just follow these steps per sub. the first one is if your sub is dual 2 ohm. Wiring Option #2

Wiring Option #2
this is for dual 4 ohm coils
Wiring Option #2

200W x 2 @ 4 Ohm
500W x 1 @ 4 Ohm

This amplifier cannot handle a load lower than 4 Ohms in stereo or bridged mode.

If the subs are Dual 2 ohm - You cannot wire a 4 ohm load with (2) subwoofers.

Only 8, 2, or 1/2 ohm loads are possible with (2) dual 2ohm voicecoils

Thanks!

The amplifier is only stable to 2 ohms.
Assuming the cubs are dual 4 ohm voicecoils - a 2 ohm load with 2 subs is not possible.
You can only wire up 1 dual 4 ohm voicecoil sub (both positives to amp... and both negatives to amp) to get a 2 ohm mono load.

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Your Amplifier:
125W x 2 @ 4-Ohms RMS
250W x 2 @ 2-Ohms RMS
500W x 1 @ 4-Ohms bridged RMS

Your Subwoofers = Dual 4 ohm
Possible wiring configurations of (2) Dual 4 ohm voicecoil subwoofers are:

2 ohm Stereo
1 ohm mono
4 ohm mono


That amplifier is not 1 ohm mono stable.

You need to put a 4 ohm load on the "bridged" terminals of the amplifier

Your best wiring configuration is going to be Series-parallel.

CLICK HERE to see the pic Larger

You can also get the same result (power) by having the subs wired in parallel independently. Put both + on one sub to one + on the amplifier and both - on one sub to the - of the same channel of the amplifier.
Repeat for channel 2.
This will be a 2 ohm stereo load.
You should only use this method if the subwoofers are in seperate enclosures... not one big cavity.

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Are these Dual Voicecoil Subwoofers? Are there 4 terminals on each sub for wires?

If they are Dual 4 ohm voicecoil subwoofers
- connect both + on subwoofer 1
- connect both - on subwoofer 2
- connect both + on subwoofer 2
- connect both - on subwoofer 1

This will give you a 2 ohm STEREO load.
To get a 1 ohm MONO load...
now connect only one of the + on EACH sub to the + on the amplifier.
and the - on EACH sub to the - on the amplifier.
You now have a 1 ohm mono load.


If your speakers are 4ohm single voicecoils (one pair of terminals) the lowest impedence possible is 2 ohms.

This is wired in the same fashion. Both + on the subwoofers to the + on the amp, and both - on the subwoofers to the - on the amp.

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what impedence are the voicecoils?
Dual 4 - Dual 2 - Dual 1 ??

Orion SX / GS / HCCA amp Wiring guide:

Orange = Right Positive
Black/ Orange = Right Negative
Yellow = Left Positive
Black/ Yellow = Left Negative
Blue = 1+1

Bridging of SX or HCCA Amps:
1. Use the Orange wire for Positive.
2 Use the Black/ Yellow wire for Negative
3. Push "in" the Mono Button
That amplifier is only 4ohm mono stable - so assuming the subs are dual 4 ohm voicecoils...

First wire both in Parallel Independently So each subwoofer is now a 2 ohm load. (combine + and + - and- on both subwoofers)

Now Take a positive on one voicecoil of sub #1 and attach to amplifier+(orange)

Take a - on that same subwoofer and attach it to a + on the OTHER subwoofer.

Finally, take a - from the second woofer to the amplifier -(black/yellow)

Now you have a 4 ohm load on your bridged channels.


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Both + on Both Subs to + Terminal on amplifier.
Both - on Both Subs to - Terminal on amplifier.