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subwoofer 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=115301
Printed Date: May 07, 2024 at 1:51 PM


Topic: subwoofer wiring?

Posted By: smoothkeys
Subject: subwoofer wiring?
Date Posted: July 26, 2009 at 7:57 PM

I have 2 Audiobahn AW1251SE these are the ratings for the subs     * Special editiion of the AW1251T
    * Comes complete with grille and special edition dust cap
    * 45 oz. Strontium Magnet
    * RMS Power Handling: 400 watts RMS
    * Peak Power Handling: 800 watts approx.
    * 2" 4-layer ASV Voice Coil
    * KM3 Coated for Virtually No Cone Distortion
    * Non-Pressed, Non-Transfer Paper Cone
    * PHAT Foam Surround
    * Non-Pressed, Non-Transfer Paper Cone
    * 2 Ohm or 8 Ohm operation per sub (1 ohm, 4 ohm, 16 ohm per pair)
    * Lug Lock Terminals

Here's my amp MTX JackHammer JH600
# mono subwoofer amplifier
# 350 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms)
# frequency response: 20-200 Hz
# variable low-pass filter (40-200 Hz, 24 dB/octave)
# variable subsonic filter (20-50 Hz, 12 dB/octave)
# bass boost (12 dB at 40 Hz)
# Active Fan Cooling with automatic variable fan speed
# Smart Engage turns on amp when signal arrives through the speaker-level inputs
# CEA-2006 compliant
# preamp and speaker-level inputs
# 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
# fuse rating: 25A x 3
# 14-11/16"W x 2-3/8"H x 9-5/16"D
# warranty: 1 year

My issue how would i wire my dvc subs to 2 ohm on a mono block ++,--?. Will the setup be safe or impedance be correct ? Also my amp is stable at 2ohm, Each speaker is stable at 2ohm separately but as a pair would they safe at 2ohm? Is it possible to wire the pair to present a two ohm load to the amp and everything be ok ?

please help me..



Replies:

Posted By: i am an idiot
Date Posted: July 26, 2009 at 8:30 PM

Your only safe and reasonable option is as follows:

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
posted_image



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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB




Posted By: spmpdr
Date Posted: July 27, 2009 at 12:13 PM
OR you could wire them as if they were svc 4ohm and short the unused coil on each sub.That would give you a 2ohm load . And yes it is safe to do.

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-A vision without a plan is just a hallucination-




Posted By: mike swanson
Date Posted: July 27, 2009 at 3:54 PM
spmpdr wrote:

OR you could wire them as if they were svc 4ohm and short the unused coil on each sub.That would give you a 2ohm load . And yes it is safe to do.


Short the unused??? Why?

just leave it open




Posted By: haemphyst
Date Posted: July 27, 2009 at 8:46 PM
Wire the voice coils in series, for 8 ohms, then parallel them... Present a 4-ohm load to the amplifier, get EXACTLY THE SAME OUTPUT as the paralleled wiring, reduce your distortion, improve your damping factor, improve your headroom, and improve your efficiency.

That's where *I* would go.

However, were you to go with the single voice coil route, it is better to short the second one, as this will give you results that are closer to the published T/S parameters.

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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."





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