Dual Voice Coil versus Single
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=1510
Printed Date: September 11, 2025 at 10:33 PM
Topic: Dual Voice Coil versus Single
Posted By: awd_sr
Subject: Dual Voice Coil versus Single
Date Posted: June 26, 2002 at 1:51 PM
ok, here's yet another question in my quest for bass in little as possible space... My MTX Thunder 280 amp can deliver 80W RMS/channel at 2ohms, and 160W RMS bridged into 4 ohms. So, would I be better off getting a 2ohm dual voice coil sub and pushing 80 watts to each coil, or getting a regular 4ohm sub and pushing the 160 watts to it? Or will they be equal? Thanks for any input!
Replies:
Posted By: DjRDifacs
Date Posted: June 26, 2002 at 2:00 PM
get a single 4 ohm sub ....if you get a dual 2 ohm and wire 'em to each channel, you could blow the sub i used to have a 12 inch pioneer diamond coned sub and its 160W RMS and it hits pretty hard .....my girlfriend has the same sub but mine hit harder cuz i gotta rodeo, and she has a 4 door integ. now i gotta 10 inch infinity perfect and a bazooka el1500 mono amp and it hits hella hard.
Posted By: GlassWolf
Date Posted: June 26, 2002 at 5:24 PM
for use with a single driver, I'd go with a single 4 ohm sub, and bridge the amp to mono. the amp will "see" a 2 ohm load and double the power output to the sub, so you'll get more power that way. a 2 ohm sub on a bridged amp, will show a 1 ohm load, and I only know a few amps that are built for that sort of load... and they don't come cheap.
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-GlassWolf
Pioneer Stage-4, Orion, DynAudio, Fi
Posted By: awd_sr
Date Posted: June 26, 2002 at 7:44 PM
thanks GlassWolf, I never thought of it like that, it sees the 4 ohm load in parallel with itself I guess. Cool, I found this shop that has an Audiobahn AW1251X for 75 bucks, should I throw that in my box?
Posted By: Static Revenger
Date Posted: June 27, 2002 at 1:55 PM
An note about the Thunder 280 amps,they usaully put out a good bit more power than they are actually rated at i.e. I had one of the thunder amps don't remember the model # but it was rated @ 40x2 12v & 60 or 70x2 @ 14.4v but it tested @ 78x2 @ 12v & 128x2 @ 14.4v.  ------------- 
Posted By: awd_sr
Date Posted: June 27, 2002 at 3:11 PM
man, I need to step up my voltage then, do you know how I can step it up to 14.4 for this amp? Maybe a voltage regulator of some sort??? Thanks Static Revenger, i did notice the diffence in the advertised specs.
Posted By: GlassWolf
Date Posted: June 29, 2002 at 1:01 AM
yup.
exactly.
see if your alternator uses an external regulator, and set it to 14.4V above idle.
that's how my Festiva was wired with it's Lestech 150-ampere alternator and ext. reg.
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-GlassWolf
Pioneer Stage-4, Orion, DynAudio, Fi
Posted By: awd_sr
Date Posted: June 29, 2002 at 5:23 AM
thanks GlassWolf, I';ll check that out...NOW in fact ;)
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