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Worthwhile difference between running 3500 at .7 ohm over 1ohm?


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Is it worth me running my 3500's at .7ohm instead of 1 ohm (can get subs reconed)

or is it just going to degrade sq (as have run amps at .7 ohm before and the sq is noticibly worse)

will have the power supply to back them up (400a of alternator for 2x 3500's )

anyone know what power they put out at 14v as well?

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They should be over 1 ohm after impedance rise. The difference is, you should get more power (depending on how much imp. rise you get at each level). I dunno about the change in sq though.

My comp setup (Not bad for what it is):

HP Compaq Presario V6120US laptop with:

15.4" widescreen

AMD Turion 64 X2 1.6GHz processor

2x1GB stick DDR2 SDRAM (667 Mhz)

Seagate Momentus 500GB SATA HDD

128MB shared video memory

Windows 7 Home Premium 64 bit

12 cell Lithium Ion battery (actual battery usage time: 6 hours)

What it does:

635670364.png4532707.png

On a USB 2.0 Wireless card

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I dont think you can hear the difference in SQ from .7 to 1 ohm honestly, unlesss you were clipping or your subs couldnt take it.

Impedence rise should keep overall resistance above 1 ohm anyhow. Check out some of Jacobs tests...Good luck

DAT 4125------>RE XXX comps active

Eclipse cd7000

I serve drunks for a living :D

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Not sure if you have clamped your amp yet to see what kind of power you are getting at one ohm. May be benifical to do this, that way you know at 1ohm you have X amount of power and at .7 ohm you have X amount of power. If it is a couple hundred 100-300 I am not sure it will be noticable, but dont quote me on that.

I just clamped my SAZ3000D at .72ohms and I was getting 3758watts out of it on a 37Hz burp. I am happy with this.

Head Unit: Alpine CDA 9887

Sub Amps: 4 RF2500's

Subs: 8 SA-12's Walled

Comp Amp: 1 RF600.2 (for now)

Comps: (4) 6.5 Punch Mid Pros and 2 Punch Pro Tweeters

Batteries: (1) XS D5100 (5) D3100

Power Cables: 2 runs of 2/0 power and ground each front to back(Try-Star)

Alternator: Dual Mechman Rhino 250's

Deadener: Fatmat / Damplifier Pro

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