2 Alpine SWR-1242D subwoofers
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=65097
Printed Date: May 03, 2024 at 7:10 AM
Topic: 2 Alpine SWR-1242D subwoofers
Posted By: wildboys
Subject: 2 Alpine SWR-1242D subwoofers
Date Posted: October 27, 2005 at 4:18 AM
rushed out and bought 2 Alpine SWR-1242D subwoofers and a ROCKFORD FOSGATE P6002 2 channel amp.The installer told me that the amp i bought is not powerful enough to give the 2 Alpine R's subs what they need.He said that it could run one sub in a single box and could rattle my brain.He said to run both subs i needed to buy a different amp probably a mono amp.He said one sub would give me all the power i need at 600 rms with this amp.I have a mitshubihi gallant any suggestions?Would just 1 of the subs and the amp work fine for my setup
Replies:
Posted By: lanman31337
Date Posted: October 27, 2005 at 7:57 AM
That amp will be fine for those subs. Did you get dual 4 or dual 2 voice coils? If they're dual 2, run each sub off of a channel. If you want even more power later, get a monoblock that's at least 1 ohm stable.
Posted By: pss5075104
Date Posted: October 27, 2005 at 9:19 AM
The 6002 is fine for 1, but is not near enough for 2. it will only do 600 rms at 4ohm. x 1 channel. the sub is rated 500 watts rms at 4 ohms. the subs will blow from under powering distorstion after a while.
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D
MECP First Class Certified Installer.
Nothing is impossable, it's just more expensive.
Posted By: geepherder
Date Posted: October 27, 2005 at 8:25 PM
Underpowering is a myth that has been debunked. You can feed a woofer square waves (a completely "clipped" audio signal) all day, so long as it's power ratings are not exceeded. I say that amp's a good match for those subs- they'll each get a hefty 300 watts a piece which is plenty enough to drive them, and you'd be safely within the power limits so you won't blow them.
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My ex once told me I have a perfect face for radio.
Posted By: 93cougarxr7se
Date Posted: November 09, 2005 at 4:42 PM
Ya, should be decent enough. I'd prefer a 1000wt amp, though. Oh well. I guess I'll just run my single Alpine 1242D off of my JBL BP1200.1. I'm not gonna buy a new amp when this one works fine. :D
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87 Astro 4.3L; Eclipse CD5000
88 Bronco 351W on 32x11.5x15 Yokohamas, Clarion Phaze 1 Components.
Home: MTX Thunder8000 in truck box & Parts Express amp.
Posted By: DYohn
Date Posted: November 09, 2005 at 6:29 PM
Thank you, geepherder, you are 100% correct. Whoever told you that "underpowering" blows subs, pss5075104, is dead wrong. ------------- Support the12volt.com
Posted By: bumpingjeep
Date Posted: November 09, 2005 at 7:18 PM
so what exactly does blow subs...
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1987 Huffy...spinners...two 15's custom mounted to the back
Posted By: dwarren
Date Posted: November 09, 2005 at 8:41 PM
Clipped signal! An example would be having your gain too high, not matching the input level. READ THIS: https://www.bcae1.com/ #29! -------------
Posted By: arrow12
Date Posted: November 09, 2005 at 10:03 PM
I underpower my subs all the time. It gives me a cushion for things like clipping and it puts less stress on the woofer. Your 2 alpines will be fine being run by that fosgate. Just wire the voice coils in parrallel so they are a 2 ohm load. Then wire each woofer to its own channel. It will be more than capable to power those subs.
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That's my opinion. Take it, leave it, or correct me.
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