car audio amp, sub hookup

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=67118
Printed Date: May 12, 2024 at 12:47 PM

Topic: car audio amp, sub hookup

Posted By: baley
Subject: car audio amp, sub hookup
Date Posted: November 27, 2005 at 1:37 PM

i have a lanzar vibe248 2 channel amp and 2, 12" kicker comp vr 2 ohm dvc subs in a shared box. i would like to know the best way to wire these up.
lanzar vibe 248 amp
rms@4ohms 2x300 , max 2x600
4 ohms bridged 1x1200
rms@2 ohms 2x500
min. spk. impedance 2ohms
2 kicker comp vr 12" subs
2 ohms
600 watts rms,peak 1200
please help with wiring diag.

thanks

Replies:

Posted By: dwarren
Date Posted: November 27, 2005 at 1:48 PM

Is this all info on the subs? Are you sure they are just 2 ohm subs? Could they be dual 2 ohm subs or in a pre fab box wired to to 2 ohms? Please be more specific.

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Posted By: baley
Date Posted: November 27, 2005 at 2:13 PM

they are 2ohm subs wired like this,hope this helps

Posted By: dwarren
Date Posted: November 27, 2005 at 2:23 PM

Yes it says you have two 2 hm dvc subs in a box right there in your first sentence. My bad.

It seems you have a mis-matched setup. I would wire the subs so that they present two, 4 ohm loads at the amp (each speaker wired at 4 ohms). this will give you 300 watts per channel, per sub then.

This amp does not mention anything about it being stable at 2 ohms bridged. I would not try it either.

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Posted By: DYohn
Date Posted: November 27, 2005 at 2:51 PM

That amp requires a minimum 4-ohm load when bridged. The wiring diagram posted by baley will cause the amp to shutdown (or smoke.) dwarren's suggestion is correct, or wire all four voice coils in series for a total 8-ohm load and bridge the amp for the same net effect.

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Posted By: baley
Date Posted: November 27, 2005 at 2:56 PM

how do i hook it up this way to present two 4 ohm loads

note:amp is 2 ohm stereo stable

bridgeable@4 ohms

Posted By: DYohn
Date Posted: November 27, 2005 at 4:12 PM

Wiring as in the last diagram above will give you the exact same amount of power to the subs as running in 4-ohm stereo and will use less speaker wire. With your speakers you cannot wire in 2-ohm stereo nor in 4-ohm mono, unless you want to cut the power handling capability of your speakers in half.

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