1 or 4 ohm

PESteele
10+ year member

I wang on an 8 in a van
i have a 15" kicker 05 comp vr sub and thinking about getting a directed audio 1500d for it. I can either wire it for 1 or 4 total ohm's the amp is rated for 425w RMS @ 4 ohm and 1100w RMS @ 1ohm which should i do. The sub is rated at 500w RMS

 
You can run it at 1 ohm, they are known to take that power daily. Set your gain gently though, I would DMM it around ~900w RMS to be sure you arent clipping and just listen to your subwoofer, see if it distorts or starts to smell. If it doesnt then you are good, if it does then just drop the gain.

 
There is a dial on the amplifier, it will be marked "gain" or "output" or something like that... You should buy a DMM (digital multimeter) for about $20 at Home Depot or Wal Mart, it will measure the voltage comming out of your amplifier so you can correctly set the gain to be sure there is not too much power comming from the amplifier.

P.S. Read the stickies in the Amplifier section (and all other sections.) //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 
so it would be better for me to overpower the sub and turn down the gain than 2 underpower it. one last thing do u think my car battery will be enough to power the amp

 
so it would be better for me to overpower the sub and turn down the gain than 2 underpower it. one last thing do u think my car battery will be enough to power the amp
Okay, you are going to need to read up a lot of threads. You can over power that subwoofer, comps can take upwards of 1000w daily.

And what vehicle do you have? Most stock altenators will run fine if you set the gain to put out around 800-900w.

 
u can insult me as long as u help cause I dont give a **** what u say. Yeah by the way the ford has 2 batteries. BUt its really crowded in there so ittl be hard 2 do the big 3

 
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PESteele

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