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Kicker 12L5 blew from a kicker zx750.1

Had the sub hooked up in parallel to 2ohm which the zx amp is 750.1@2ohm. the sub is rated at 600w rms and 1200w max. The sub was turned down half way and all the settings on the stereo was all the way down to break in the sub. two days later it locked completely extended and smoking like a train. what caused this?

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  • Blake Poynor
    Blake Poynor Nov 20, 2013

    From what i've always understood and correct me if i'm wrong but isn't over power better than under power? doesn't underpowering cause clipping? I can wire the L5 in series to 8ohm and then I believe my amp outputs 375, maybe less. Can you elaborate a little more on having a box too small? I didn't know it would screw up an amp. the box it's in is roughly 1.5 cubic ft. and last formula I knew for that is measure HxWxD and divide by 1728. It's been around 14 years since I've been in stereo's so i'm a little rusty.

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MY BEST GUESS FROM WHAT YOU HAVE SAID IS THAT THE BOX WAS TO SMALL. BUT YOU ARE OVERPOWERING THE SUB RUNNING IT AT 2 OHMS ON A 750 WATT AMP WITH A SUB THAT IS ONLY RATED FOR 600. NO MATTER HOW FAR YOU TURN YOUR SETTINGS DOWN, YOUR STILL PUSHING TO MUCH POWER FOR THE SUB TO HANDLE. IT IS ONLY RATED 600 WATTS FOR A REASON. ESPECIALLY IF YOU LISTEN TO MUSIC THAT HAS A REAL LOW END AND THEN A HARD HIT. REMEMBER A HARD HIT WILL SPIKE YOUR AMPS OUTPUT THEREFORE PUSHING MORE WATTAGE TO THE SUB.

Posted on Nov 20, 2013

  • Blake Poynor
    Blake Poynor Nov 20, 2013

    Blake Poynor From what i've always understood and correct me if i'm wrong but isn't over power better than under power? doesn't underpowering cause clipping? I can wire the L5 in series to 8ohm and then I believe my amp outputs 375, maybe less. Can you elaborate a little more on having a box too small? I didn't know it would screw up an amp. the box it's in is roughly 1.5 cubic ft. and last formula I knew for that is measure HxWxD and divide by 1728. It's been around 14 years since I've been in stereo's so i'm a little rusty.

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What about kicker 1000 watts mono car amp class D sub amplifier DX1000.1- (2) ohms and a pioneer champion series pro TSW300D2 12" SUB elements 1-way RMS 1000 WATTS/ DUAL 2 VOICE COILS. how would you connect the speaker + to + or what?

Posted on Nov 27, 2013

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Posted on Jan 02, 2017

Lexdiamonzz
  • 203 Answers

SOURCE: is it enough

Audiobahn subs are not too powerful and they can not handle too much continuous RMS, be careful they will heat up and tear off the voice coils off ur subs. run about 100 - 150 RMS at 75 HZ to each sub and keep the gains at about 3/4 this way you will avoid blowing out your subs. It also depends on the amp? What kind of amp is it?

 

Let me know if you wish. Otherwise

Posted on Oct 21, 2007

  • 3 Answers

SOURCE: amp getting really hot

If depends on what the amp is rated to run. If it is only rated to run 2 ohms x2ch then it can only run 4 ohms x1ch. If you run it at 1 or 2 ohms that is too low, too much current, and it will get hot and eventually blow up under hard use. Some quality amps can live that way, and it depends on the sub and what frequency you are running it at. For normal use I would not recommend it. Wire to sub at 4 ohms x1 (or 2 ohms x2ch) for that amp if that is what it is supposed to be at, I'm not sure from your description. Also enhance cooling of the amp if you can, I run fans on mine if they have a heat issue. Warm is one thing, hot is another and not good for amp.

Posted on Apr 22, 2008

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SOURCE: Connecting a subwoofer to a mono amp that has 2 sets of terminals

ok this gets confusing sometimes. Ok first look to see what ohm your subs are. If you have a dual 4 ohm sub When you run that on sub + to + and - to - then that will make that sub 2 ohm. its different on ohm if the sub is say a 8 ohm then putting the wires that way will bring that sub to 4 ohm. Now lets say you have 2 subs that are dual 4 ohm and wire both of them + to + and - to - and go bridge the amp which would be both wires from sub both + together and both - wired bridge on the amp will make it a 1 ohm to the amp. Please post what ohm your subs are and i can tell you alittle more about it

Posted on Oct 23, 2008

blueextc3221
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SOURCE: adjusting wattage on kenwood kac 9103 class D mono amp

That amplifier is 900W x 1 @ 2ohms.
If your subs are 4ohm SVC wired Parallel, resulting in a 2 ohm load, each sub will only see 1/2 of the rated power. (450W ea.)
Your gain (sensitivity) setting should be between 75% and 85% to max. You will be fine.

Posted on Jan 03, 2009

etirbynnor
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SOURCE: got a 12"kicker L74ohm sub and sony xm-D9001GTR mono amp

Hello juan_penaloz,

The Kicker L7 has an RMS power range of from 50-750 watts and a maximum power handling capability of 1,500 watts so your Sony amp will power it OK. A more powerful monoblock like the Alpine MRP-M1000 or the Kicker 08ZX750.1 would provide even more power and could operate safely at 2ohms.

You have the voice coils wired properly for the Sony amp. It's OK to have the sub impedance higher, but you definitely do not want it lower than the 4ohms the amp is rated at in bridged mode.

Hope this helps.

Posted on May 26, 2009

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1 Answer

I have 2 12 inch kicker rt dual 2 ohm subs. On a kicker cx1200.1 i want to kno how to hook it up to 2ohm to the amp. And if i can add another 10 inch kicker rt 2ohm sub in the future.


Do to the impedance Of your sub u can't run it @2ohms its going to either be @1ohm or 4ohms and your amp isn't 1ohm stable and u will risk damaging your amp. So your only option is to run it @4ohms and on a good note your sub is 100-600 watts RMS and your amp will push 400-500 watts RMS @4ohms. Now if you want to run 2 sub's in the future That amp will work perfect because it pushes 1,200watts RMS @2ohms and to wire your 2 sub's @1ohm just follow the steps in the image below. Hope this helped.25345194-v0hbouy2nvquqteoroa5j5rq-3-0.png

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I need to know how to hook up an alpine v12 amp 2 ohm i have two tens


Hi there,

This really depends if your 10" subs are 4 ohms each or 2 ohm - for this exercise, I'm presuming they are 4 ohm each.

You already know your amp can deliver 600W RMS (@ 2ohm), so you need to be careful you do not exceed the maximum RMS input power of your subs.

Normally you would wire subs in "parallel", which would reduce the circuit load to 2ohms - however, the 600W RMS power may be too high for your subs to handle.

In this case, it may be safer to wire your subs in "series" - this will increase the circuit load to 8ohms, which will effectively decrease the amps RMS power output.


Cheers,

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I just bought a kicker cvx 12' less than a month ago and im pushing it with a alpine mrp-650 which is rated for 600w rms and the sub is rated for 750 RMS and i only had the amp turned up half way and i...


Yes, only if you can prove it and believe me, they have so many loop holes now that they can pretty much do what they want. The fact is though, the RMS ratings on speakers can vary, but usually mean either Max watts or Normal (constant) listening range, depending on manufacturer. The other thing to mention is, to get the best sound out of your speakers, they say to put exactly half the watts of power to the RMS watts that your speakers are made for, just for future reference. Hope this helps some and good luck!

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Hello montyski20,

The amp outputs 500 watts RMS into 4ohms, 750 watts RMS into 2ohms and 1000 RMS into 1ohm.

The L7 can handle 750 watts RMS (375 watts per each coil). If your L7 is the 2ohm version, you should wire the voice coils in series, the positive marked coil to the negative unmarked coil. Then connect the remaining positive and negative to the amp terminals. This gives you a 4ohm load (500 watts). If your L7 is the 4ohm version, wire the voice coils in parallel, both marked and unmarked positives together, likewise both negatives and then to the amp terminals. This gives a 2ohm load (750 watts).

Paralleling the 2ohm sub will result in a 1ohm load (1000 watts) and that is too much for the L7.

Hope this helps.

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Hello rigo11785,

The MTX Thunder 1501D is stable at 1ohm and outputs 1,500 watts RMS into that impedance. An L7 with 2ohm DVC's would present a 1ohm load if wired in parallel and would allow the amp to produce more power than into the 4ohm series load. The problem is that the L7's maximum power handling rating is only 1,000 watts RMS, so if you wire the coils in parallel, you'll very likely overdrive the sub and perhaps damage it. Now, if you bought another L7 and ran the voice coils in series and the subs in parallel, that would be a 2ohm load and well within their power handling capability.

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Bridging is a method of connecting the channels of a multi-channel amp in such a way that the amp delivers the output of 2 stereo channels into a single mono load.

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Hope this helps.

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1 Answer

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Hello juan_penaloz,

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You have the voice coils wired properly for the Sony amp. It's OK to have the sub impedance higher, but you definitely do not want it lower than the 4ohms the amp is rated at in bridged mode.

Hope this helps.

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Your subs are single 4 ohm subs.
If your subs are wired stereo, they both are seeing 600W. (more than the rated RMS)
Chances are, you have them wired parallel to a 2 ohm mono load - of which that amplifier is not rated. In theory, it will produce about 2000W @ 2 ohm mono for a short period of time.
Your amplifier is too powerful for your subs. Turn down the gain setting to 3/4 or purchase better subs. Also be sur the subs are inthe proper enclosure. It sounds as if they are excurting past their linear x-max and colliding with the rear bump plate. This will cause damage down the road if left as is.

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