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Old November 30th, 2003, 01:53 PM   #1
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quick question

can a JBL 1200.1 power two 12inch L7s?
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Old November 30th, 2003, 06:37 PM   #2
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what impedance L7s? Your best bet is the 2 ohm variety or L7s for that amp. You put the coils of each driver in series, then put the drivers in parallel that will give you a 2 ohm load, which for the 1200.1 is it's 1200w rating. If you have the 4 ohm variety of L7s there isn't much you can do, you end up with a 16, 4, 1 ohm load. 16 would be 150w for the system if the amp would even drive it(it would more than likely) 4 ohm would be 600w(although 600 wouldn't be bad, it's not using the amp to it's fullest potential), and 1 ohm would send your amp to amp heaven.

I'm only running a kicker dx700 that's birth certificate says it's almost 900w, and I pound the crap out of a pair of L7's. I used to have a ZR600 and it wasn't quite enough, so like I said your best bet if you get that amp is to get the 2 ohm L7s, or get a different amp, find a mono block that's 1 ohm stable(there are a few of them, crossfire 1000d, kicker sx or kx series, orion hcca, tons more.)
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Old November 30th, 2003, 06:38 PM   #3
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okay i have no idea what you just said the L7s are 2ohm though so it should be fine? i don't want to underpower the subs that's why
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Old November 30th, 2003, 07:07 PM   #4
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2 ohm L7s will be just fine. You wire the coils in series which means you take the + from one and run coil and run it to the other, then you runs the drivers in series, take the unused + and - from each driver wire each + to the + on the amp and each - to the - on the amp.

Here's a quick pic I made for you. you have 2 2ohm coils in series, that's 4 ohms each driver. you have 2 4ohm drivers in parallel which is a 2 ohm load
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Old November 30th, 2003, 07:20 PM   #5
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thanks so much illusion, btw how well does the dynmat work? my trunk goes nuts rattling =T
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Old November 30th, 2003, 07:32 PM   #6
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I'm lazy so I'll just copy and paste from another post I made. I will add that without dynamat I'd go insane, I can't handle rattles.

Quote:
For dynamat, I have the trunk lid with extreme, little triangles of extreme on the bottom of the trunk, and solid extreme where the lights are. I also took the lights out and added some more weather stripping foam tape behind them to keep them from rattling. I put bolts through the bottom of my license plate and foam tape behind the plate too. I have little bits of foam tape for a bunch of the junk that's under the rear deck, and dynmat where the seams on the rear deck are as well. It still rattles a little, but no where near as bad as it was.
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