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alpine 8" sub - 2 or 4OHM??

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Old 10-25-2012, 06:59 AM
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Originally Posted by White-JKU
Alpine amps are also usually under rated. They can handle and do more than they say. Truthfully you will never be able to tell the difference. 2ohm are easier to run so just do that then. Good choices on the amp. Cant speak for the subs, have only ran kicker.
Alpine are normally cleaner sounding while kicker is know to be loud both are quality built
Old 10-25-2012, 07:04 AM
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Originally Posted by EsByrd
Alpine are normally cleaner sounding while kicker is know to be loud both are quality built
Yea the L7's are lacking a bit of quality but they sure are loud.
Old 10-25-2012, 12:17 PM
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My 2013 came with an Alpine sub, is this normal for Jeeps now? My 2007 had a factory el-cheapo in it.
Old 10-25-2012, 04:16 PM
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Originally Posted by EsByrd

If u go by this u run the risk of damaging ur amp. Rule of thumb is never under power ur sub and never run a amp at full power. I worked car audio a long time and have one many DB competitions. If a sub can handle 500rms then a 750rms amp turn to 65-70% is a good setup and also sounds better do to the fact that a class d amp running above 80% cause distortion.
My point was not to buy a 500 watt max sub, and use an amp that pushes more than that at the given load, like 700 watts...
Old 10-25-2012, 04:25 PM
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Originally Posted by Ryan0260

My point was not to buy a 500 watt max sub, and use an amp that pushes more than that at the given load, like 700 watts...
I just used 500 as a example but my point was that a amp should be able to Max the sub out at around 70% power. A lot of people try to save their subs from blowing by getting a amp that can't blow them but it is still harmful on the speaker by under powering them so its best to Max the speaker but watch the volume
Old 10-25-2012, 08:31 PM
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Thanks guys now it is making sense, hopefully I'll get around to getting all this stuff in soon and I'll report back on results. If anyones interested during my search I found this sub recommended as a direct replacement to the factory unit

Pioneer TS-SW841D Shallow-mount 8" 4-ohm subwoofer at Crutchfield.com

From what I've read the alpine sub will require a spacer to get in the stock box, I'm also going to dynamat and polyfill the box for good measure
Old 10-26-2012, 05:33 AM
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Originally Posted by EsByrd

I just used 500 as a example but my point was that a amp should be able to Max the sub out at around 70% power. A lot of people try to save their subs from blowing by getting a amp that can't blow them but it is still harmful on the speaker by under powering them so its best to Max the speaker but watch the volume
Yeah but most people don't know to watch the volume and that is the problem
Old 10-26-2012, 10:19 AM
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Originally Posted by Ryan0260

Yeah but most people don't know to watch the volume and that is the problem
Lol thats true but that's the kind of person always at the stereo shop spending more cash or pleading for a quick warrenty swap instead of waiting for factory warrenty shipping. I did competition for many years and I rarely burn up anything. I even held the Mississippi state usac DB record in the 0-15 class for 3yrs with a 153.7 on dash and was pulling mid 170s in the outlaw class at the port
Old 10-26-2012, 03:16 PM
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Are the stock sub wire harnesses the same as the stock soundbar harnesses?

I'm trying to cut as few wires as possible.



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