woofer wiring

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=28994
Printed Date: May 17, 2025 at 1:38 AM

Topic: woofer wiring

Posted By: troublesome51
Subject: woofer wiring
Date Posted: March 25, 2004 at 3:47 AM

AMP : ROCKFORD-FOSGATE-POWER-501bd (Running 2x12" Subs)
300W x 1 @ 4 Ohms RMS
550W - 600W x 1 @ 2 Ohms RMS
Bridgeable
Crossover : LP 50-250Hz 24dB per Octave
Subsonic filter
Bass Control - 0 to 18 dB @ 45 Hz
Low level RCA Signal input. Voltage - 100mV - 6 volts
4 gauge Power Wire input
Cast Heatsink
Wired Bass Control included
Protection built-in
Frequency response : 20 to 250 Hz +/- .5 dB
Dimensions : 2.38 X 9.85 X 13.07 (inches)

SUB : 2 x 12" ROCKFORD-FOSGATE-RFP4112
12" Punch 'HE2' DVC series subwoofer
400W RMS power handling
800W Peak power handling
Dual 2-ohm voice coils
85.0 dB SPL (dB @ 1w/1m)
Magnet Weight: 77.4 oz (2194g)
Frequency range: 27Hz-250Hz
Mounting diameter: 11.00 inches
Mounting depth: 6.0 inches

I have them wired up as follows

posted_image

But that means i still have a Positive and Negative on each Sub not connected to anything, as they are dual coil subs...

Any Help Much Appreciated..:^:

Replies:

Posted By: Ketel22
Date Posted: March 25, 2004 at 3:57 AM

first off it wouldnt be a good idea to turn on your system too much if you havent already, having only one vc of a dvc sub is not good for the sub.

This is how you should have you subs wired.

posted_image

Also I hope you have your power wire and ground wire run to the amp and fuse correctly

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Quad L Handyman services

Posted By: troublesome51
Date Posted: March 25, 2004 at 4:03 AM

would this make it more powerfull now???

i wont be turning my system on and yes everything is wired up nicely, cheers for your help m8

Posted By: Ketel22
Date Posted: March 25, 2004 at 4:06 AM

wiring it that way, is the correct way, using only one of the two voice coils on your subs with damage the subs. But yes this should effectively give you a 3db increase (aka double your sound)

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Quad L Handyman services

Posted By: troublesome51
Date Posted: March 25, 2004 at 4:16 AM

cheers buddy, yeah i gathered its wrong way just wanted to know if its gonna be louder as i am well pleased with it already...

Posted By: superstreet786
Date Posted: March 31, 2004 at 12:27 PM

that wiring was for 2 ohm subs though? i thought he had 4 ohm?

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---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap