Question about Kicker ZX1500.1 Car Audio Amplifier

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ZX1500.1 Major Problem

I just purchased a zx1500.1 off of eBay(maybe a mistake) and just got done hooking it up. I have 2 12" L7's 2 ohm....the subs are wired exactly how they are supossed to. I hook everything up and turn on my car...the amp powers up then it seems like the subs are just getting constant power because there is just a constant sound of low bass. The subs don't hit they just stay erect and I have no idea what is wrong.

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  • Stevie K Dec 15, 2007

    Yeah the subs remain staright out as long as the amp is on...it may be the transistors. Any clue int he world how much that would be to fix at a kicker dealer?

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  • Master
  • 631 Answers

If the subs are pushed to their limits straight out and remain there as long as the amp is on, the amplifier probably has shorted output transistors. If the speakers are moving in and out like they would be on a bass note, there may be something wrong with the shield ground of the head unit.

Posted on Dec 13, 2007

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SOURCE: Amp cuts off...

Are the woofers single or dual voice coil?

How many ohms per coil?

If they are dual voice coil, are the coils for each speaker wired in series or parallel?

Are the speakers connected directly to the amp or are the speaker in series (one wire from each speaker connected to the amp?

Have you checked the DC voltage at the amp when you're playing it at high volume (where it cuts off)?

Posted on Dec 22, 2007

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1 Answer

I have 2 12


To be on the safe side without further information I would hook the two subs up in series leaving you with an 8 ohm load.

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I have one solo baric hooked up in a 4 ohm series to a 1000 watt kenwood amp that I've tried hooked up normal and bridged at 4 ohm. When I turn it up the sub cuts out. I've looked up a bunch of...


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I have a brand new L7 is it blown?


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Good price


Hello smoot_dog,

Well, you did not specify whether you have the 2 ohm or the 4 ohm versions of the L7 and that will impact your choice of amps. But with 8 voice coils and 4 subs to work with, you certainly have lots or potential configurations.

If your subs are the 4-ohm version, I would recommend the Alpine MRP-M1000. Currently it is on sale at www.crutchfield.com for $347.00. With this amp you'd wire the voice coils in parallel (2 ohms), wire each of the 2 pair of subs in series (4 ohms), and the resulting pairs parallel to the amp for a final load of 2 ohms.

If your subs are the 2-ohm version, I would recommend the Rockford-Fosgate Punch P1000-1bd which is stable at 1 ohm. Crutchfield sells it for $349.99. With the Punch and 2-ohm voice coils, you'd series the voice coils (4 ohms), parallel each pair of subs (2 ohms), and then parallel the resulting pairs to the amp for a final load of 1 ohm.

Either of these amps will provide an honest 250 watts RMS to each L7. They'll not only rock your vehicle, they'll rock the pavement.

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hook them up parellel for 1ohm load

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I have two 15inch l7 subs 2ohm


With 2 ohm dvc a sub can output either a 1 or 4ohm load.therefore with 2 subs you end up with 2ohm or 8ohm load.Of course you'll use the 2ohm connection which is this.....

Take one sub and connect the (-) with the other (-) and the (+) with the (+).
Do the same with the other sub.Each sub now carries out a 1ohm load and you end up with 2 pairs of cable.Now take one(+)and put it on the amp.Take the (-) from the OTHER pair(this is critical) and connect it on the amp.You will still have a(-) from the first pair and a (+) from the other pair!Well....connect them together!!!Thus you'll have a 2 ohm load on the amp!

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Man


it is impossible to make a dual 2 ohm sub only be seen as a 2 ohm load with out damaging the speaker. there is a way but if i tell you how to do it, then "WHEN" not if but definately when you blow up the sub you will be ticked at me and expect me to pay for it so i am bound by law not to disclose it. being mecp certified and an authorized distributor makes me liable for any
mis-information. and the only way to do it is the worst way to do it that may possibly even cause the amp to blow or even worse the sub can and most times does actually catch fire inside the voice coil.

you have to have a dual 4 ohm.sub to get a 2 ohm load at the amp

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Amp cuts off...


Are the woofers single or dual voice coil?

How many ohms per coil?

If they are dual voice coil, are the coils for each speaker wired in series or parallel?

Are the speakers connected directly to the amp or are the speaker in series (one wire from each speaker connected to the amp?

Have you checked the DC voltage at the amp when you're playing it at high volume (where it cuts off)?

Dec 22, 2007 | Kicker ZX1500.1 Car Audio Amplifier

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