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got an ohm problem

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=122902
Printed Date: June 09, 2024 at 10:00 PM


Topic: got an ohm problem

Posted By: zero73188
Subject: got an ohm problem
Date Posted: July 30, 2010 at 1:02 PM

I have an Rockford Fosgate Punch P3SD212 Shallow-mount sub and i have an Sony xm-1s amp. I was wondering if i hooked the sub in series at 4 ohms would the rms be to low or would it be better to wire it parallel at 1 ohm and turned my gain to nothing




Replies:

Posted By: i am an idiot
Date Posted: July 30, 2010 at 1:07 PM
Is the amp capable of driving a 1 ohm load? 




Posted By: zero73188
Date Posted: July 30, 2010 at 1:10 PM
it doesn't  say it does it only says 4ohms 290 and 2 ohms 500 so i was wondering if i did wire to 4 ohms would it only give it 290 rms




Posted By: DYohn
Date Posted: July 30, 2010 at 2:06 PM

zero73188 wrote:

it doesn't  say it does it only says 4ohms 290 and 2 ohms 500 so i was wondering if i did wire to 4 ohms would it only give it 290 rms

That sounds like your best option.



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Posted By: zero73188
Date Posted: July 30, 2010 at 2:54 PM

i thought so just rying to figure out if that would work or not





Posted By: i am an idiot
Date Posted: July 30, 2010 at 3:25 PM
If it were capable of a 1 ohm load, it would have been listed where you found the 4 ohm and 2 ohm rating.  Wiring it at 4 0hms is your only safe option.




Posted By: zero73188
Date Posted: July 30, 2010 at 3:31 PM

if i wired 2 of the amps in series and then wired 2 of the subs in series/parallel would that be an ok setup?





Posted By: zero73188
Date Posted: July 30, 2010 at 4:02 PM

nevermind that won't work





Posted By: haemphyst
Date Posted: July 30, 2010 at 4:04 PM
If you want to see some of the most spectacular fireworks in your trunk imaginable, then wire two of those amps in series.

Basically what I am saying is this:

With one woofer, 4-ohms is all you got. That's a 400 watt woofer, the amplifier output at 290W (and being as it IS a Sony amp, keep in mind that is a ILS number) you'll have plenty of power. The amp will be cooler, and run with lower distortion, something that amp can use all the help it can get with. You'll NEVER hear the output difference.

:::::EDIT:::::
O... M... G...! LOL Even Sony themselves say "Make Believe"! I wonder if they are referring to the 290W RMS output of this specific amplifier! BWAHAHAHAHAH!!! On the top of the page... That, by the way is the UK home page for that amplifier. You'd never read anything like that here!

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."




Posted By: zero73188
Date Posted: July 30, 2010 at 4:23 PM

ok thank you guys i felt dumb after i realized what i ask with that last question






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