wiring 2 dvc subs
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=113177
Printed Date: May 11, 2024 at 7:50 PM
Topic: wiring 2 dvc subs
Posted By: johngutillo
Subject: wiring 2 dvc subs
Date Posted: April 15, 2009 at 4:26 PM
i have a 4 channel kicker zx650.4 im replacing a memphis pr600 that burned out with the kicker ,,,, i also have 2 infintiy kappa perfect vq's dvc subs 4 ohms each coil,,,, someone told me a way i could bridge the amp and get 4 ohms called direct impedance wiring ,, he said to hook the negative outputs of the subs togeather then ground them to the frame of the car,, has anyone heard of this method,, i cant verify it anywhere online,, and does anyone know if this kicker amp will sound better then my memphis amp??? at first i was going to wire the sub woofer coils indepently and use all 4 outputs on the amp but i would like to bridge the amp if at all possible at a 4 ohm load ,,,,,,,,,,, someone please help
Replies:
Posted By: i am an idiot
Date Posted: April 15, 2009 at 4:56 PM
Stop. Do not ground any speaker wire to the chassis of the vehicle. Option 2 (series/parallel) = 4 ohm load
Voice coils wired in series, speakers wired in parallel
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono | 
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Posted By: johngutillo
Date Posted: April 15, 2009 at 5:29 PM
yoo dude i have a 4 channel amp im trying to use,, two dvc subs 4 ohms per coil ,,, please someone help
Posted By: johngutillo
Date Posted: April 15, 2009 at 5:34 PM
just to be clear i am taking the memphis pr600 amp out beacuse it burned internally,, and im gonna replace it with the kicker zx650.4
Posted By: i am an idiot
Date Posted: April 15, 2009 at 5:36 PM
Sorry, I didn't catch the 4 channel part. You only option is going to be bridging each speaker to each pair of channels of the amp. Of course you will need to wire the voice coils in series for an 8 Ohm mono load. Option 2 (series) = 8 ohm load
Voice coils wired in series
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono | 
What exactly is the Memphis doing or not doing? Did it smoke? |
Posted By: johngutillo
Date Posted: April 16, 2009 at 11:58 AM
has anyone heard of wiring the negative outputs of subs to the frame of the car?
Posted By: icearrow6
Date Posted: April 16, 2009 at 12:30 PM
johngutillo wrote:
has anyone heard of wiring the negative outputs of subs to the frame of the car?
...yeah i've seen it. It makes a loud thump when you turn the car on.... easy 30 bucks for the shop to fix. lolz
Posted By: johngutillo
Date Posted: April 16, 2009 at 1:09 PM
the memphis amp did smoke now it wont power on,,, my mids and highs amp a jlaudio 300/4 v2 might be damaged also,,, the battery was dieing after the amp burnt in my car until i took the fuse out near the battery now it doesnt die at night ,,,, please help
Posted By: haemphyst
Date Posted: April 16, 2009 at 1:43 PM
johngutillo wrote:
has anyone heard of wiring the negative outputs of subs to the frame of the car?
i am an idiot wrote:
Stop. Do not ground any speaker wire to the chassis of the vehicle.
If you wanna fry another amp, by all means DO SO!
Let me add the necessary stress to i am an idiot's response:
i am an idiot wrote:
DO NOT GROUND ANY SPEAKER WIRE TO THE CHASSIS OF THE VEHICLE!
The amplifier you have CANNOT have any output wires connected to the chassis of the vehicle, it will burn the amp, or at a minimum repeatedly blow the fuses.
Now, as far as wiring the woofers in series, for 8 ohms each, then bridging the pairs of channels, it will be EXACTLY the same power as running one channel of the amplifier to a voice coil, running the amp NOT bridged in 4-channel mode, and could be a bit more confusing overall. The EASIEST answer is 4-channel mode, one voice coil per channel. ------------- 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: i am an idiot
Date Posted: April 16, 2009 at 6:14 PM
Are you going to get the amp repaired?
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