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Mtx 7500 sub

I just bought used 2 12" 7500 mtx subs dual voice coil and when i hooked up one of them when the volume goes up a little it gets really distorted. is it blown? is there a way to fix it? thanks nick

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What amp are u usin?What enclosure 4 speakers do u have?Might not have enouigh voltage 4 the amp.How big are the wire for power 2 amp?what ohm are you playing ,is it compatible to the woofers.Need more info.Model and makes please,but 1st a rating.

Posted on Jun 16, 2008

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I have 2 different subs in one box, a 12" MTX thunder and a 12" Kicker CVR. the kicker is a dual voice coil while the MTX I dont believe is. Can I use one amp for this set up? And how would it be wired?


im guessing both speakers are 4 ohms ..mtx 4ohms and kicker dual 4ohms..now if your amp can go down to 1 ohm wiring the kicker dual coils in parallel (2ohms) and the mtx connected together (4ohms) should leave you with a final impedance between 1 and 2 ohms ...i suggest you use one or get another

Oct 08, 2013 | MTX Car Speakers & Subwoofers

1 Answer

How do i fix a frozen 12 inch power acoustik FUBAR-12W sub


You have a case of a blown sub. You will need a recone kit. You ca send it in to a company like fix my speaker or google recone kits for Power Acoustik FUBAR. May be cheaper just to get another sub.

Oct 20, 2012 | Power Acoustik FUBAR-12W Car Subwoofer

1 Answer

I need to see a wiring diagram of an MPX 210 speaker box. My brother-in-law bought one from a friend and someone completely jacked the wiring. I just need to see how it should be wired. Pictures would be...


It really depends on what subs you are mounting in the box. If you are mounting single voice coil subs, it's easy. positive of the sub goes to positive on the inside of the box and the negative of the sub goes to the negative of the box. Then you would repeat the process for the other sub. Then wire the box to the amp using the push or screw terminals.

Now if you have dual voice coil subs, that's where it can get tricky. You really have to know what amp your using and what ohm load it can handle, and how many channels you will be using.

I'm going to give you an example that has two dual 4 ohm voice coil subs. Let's assume you will be hooking them to a 2 channel amplifier that is 2 ohm stable.

wire the positive of both voice coils to the positive post of the box. then wire both negatives of the voice coils to the negative of the box. Repeat the process with the other sub. This is called a parallel set up. Two 4 ohm voice coils wired this way will produce a 2 ohm load. since your amp is 2 channel, you will hook the positive and negative to the positive and negative of one side of the box, then repeat with the other channel to the other side. This will allow the most power to come out of a 2 ohm stable amplifier.

If you have something other than the equipment I gave you an example of, repost with your equipment specs and I will walk you through it.

Sep 09, 2011 | Dual QPower 10" Square Slot-Vented...

1 Answer

What's the best way to hook up 2 Hifonics hdl12d4 subwoofers to a mono amp


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

Aug 31, 2011 | Hifonics HFI 12S4 12 DVC Subwoofer 600...

1 Answer

I just needed some help with wiring my p8002 rockford amp to 2 fosgate 10 inch subs i just bought. there 4 ohms a piece and dual voice coil. i dont know much about car stereos but people keep telling me...


Well i tried looking up that amp, but Fosgate sight is down. So assuming that the best power out of your amp is 2ohms off the bridged hookup, and the subs are 4 ohms per coil, the best way is to only use one side of each speaker and hook it straight the the bridge. Only using one hook up wont hurt anything, its just for giving you wiring options. And when adding up ohms of speakers, it goes like this. If you had two 4 ohm subs, that'll give you a 2 ohm load. If you hooked up all your hookups, it would be like having four 4 ohm subs, and would give you a 1 ohm load.

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Jan 19, 2011 | Car Speakers & Subwoofers

1 Answer

How do i wire up my mtx 15 5500 sub woofer dual voice coil any one know i have tried several ways


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
1_2ohmdvc_4ohm.gif
1_2ohmdvc_1ohm.gif Wiring Option #2
this is for dual 4 ohm coils
1_4ohmdvc_2ohm.gif Wiring Option #2
1_4ohmdvc_8ohm.gif

Mar 06, 2010 | MTX Thunder 5500 T5510-04 Car Subwoofer

2 Answers

MTX 12'' sub noise


Sounds like your sub is overextending itself, and possibly losing contact at the voice coil. Overextending will make a weird rattling sound, losing contact at the voice coil will make a popping sound.

Jan 12, 2010 | Car Speakers & Subwoofers

1 Answer

How do i wire mtx 9500 subs 2 10'' down to a one ohm


THE T9510-04 SUBS ARE SINGLE COIL SUBS AND YOU CAN VIEW THAT WIRING DIAGRAM AT THE FOLLOWING LINK:
http://www.mtx.com/caraudio/products/subwoofers/TechData_T9510-04.pdf

THE T9510-44 SUBS ARE DUAL VOICE-COIL SUBS AND YOU CAN VIEW THAT WIRING DIAGRAM AT THE FOLLOWING LINK:
http://www.mtx.com/caraudio/products/subwoofers/TechData_T9510-44.pdf

SINCE YOU NEED A 1 OHM LOAD, I PRESUME BRIDGED AND ARE USING TWO SUBS, THEN HOPEFULLY YOU HAVE THE DUAL VOICE COIL TYPE, AS THEY ARE DUAL 4 OHM AND YOU WILL HAVE TO CONNECT THE VOICE-COILS IN PARALLEL WHICH WILL MAKE EACH SPEAKER A 2 OHM SPEAKER AND THEN CONNECT THE TWO SPEAKERS THEMSELVES IN PARALLEL AND THIS WILL PROVIDE YOU THE 1 OHM LOAD. IF YOU IN FACT HAVE THE SINGLE 4 OHM VOICE COIL VERSION, THEN IT WILL ONLY PARALLEL THE PAIR DOWN TO 2 OHMS. OK. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

Jan 08, 2010 | MTX T9510-44 - 10" 9500 Thunder Series...

1 Answer

How do i wire two kicker l7 dual 2 ohm subs to play on a mtx 7801 class d amplifier


Hello moore_broder,

Your MTX 7801 is stable at 1 ohm, but you cannot wire a pair of DVC 2 ohm subs to that impedance. They can only be wired to 1/2 ohm which is too low or to 2 ohms.

Series the voice coils and parallel the subs. On each sub, jumper Black to Red/White Dot, then run both red's (positive) and both black/white dot's (negative) to your amp terminals.

The diagram is here.

Hope this helps.



Sep 24, 2009 | Kicker Solo-Baric L7 S15L72 Car Subwoofer

1 Answer

How do you hook up 2 12" L7's to a kicker 1200.1 amp?


You have a 2 ohm stable amp, and dual voice coil subs.. The L7's come in both Dual 4 ohm, and Dual 2 ohm, so you have to know what impedance your coils are prior to wiring. HERE is a nifty little guide that will show you how to wire your subs. DO NOT WIRE THE SUBS LOWER THAN 2 OHMS ON YOUR AMPLIFIER!

Aug 23, 2009 | Kicker Solo-Baric L7 S12L7 Car Subwoofer

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