Alpine 3549 amp, 1.5 cubic foot box
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=84218
Printed Date: May 13, 2025 at 3:09 PM
Topic: Alpine 3549 amp, 1.5 cubic foot box
Posted By: jamesbond
Subject: Alpine 3549 amp, 1.5 cubic foot box
Date Posted: October 16, 2006 at 10:35 PM
I need some advice. I have an Alpine 3549 300 Watt mono. I also have a 1.5 cubic foot box. I have 2 choices.
1. 1-Eclipse 10" DVC both 4ohm = 2 ohm load
or choice two
2. 2-Older MTX Road Thunder PRO's 8ohm each = 4 ohm load
What should I do? Run the 1 Eclipse in a 2 ohm config or the 2 MTX's in an isobaric & a 4 ohm config? The box was designed for the Eclipse but I have the other 2 just laying around and thought I might just use them. I know that the box design for a iso config is usually 1/2 the normal size. How would the box do at normal size? Thanks for any help.
James Bond 007
Universal Exports
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Shane
Replies:
Posted By: stevdart
Date Posted: October 16, 2006 at 11:24 PM
Eclipse or Road Thunder? Hmmm.... 
------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: aznboi3644
Date Posted: October 17, 2006 at 3:50 PM
haha...ROAD THUNDER BABY!!!!
Posted By: forbidden
Date Posted: October 17, 2006 at 6:02 PM
Hold the bus, if that is the old 3549 mono amp, it was not stable to 2 ohm mono, back to the subwoofer drawing board you go.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: forbidden
Date Posted: October 17, 2006 at 6:24 PM
Use the Eclipse and use one coil only on it.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: geepherder
Date Posted: October 17, 2006 at 7:05 PM
It will be halved.
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My ex once told me I have a perfect face for radio.
Posted By: Flakman
Date Posted: October 17, 2006 at 7:10 PM
geepherder wrote:
It will be halved.
I don't think that is correct geep...but I do not have the stats to back it up...so here's a grain of salt to go with it. ------------- The Flakman
I feel strange. I have deja vu and amnesia at the same time.
John | Manteca, CA
Posted By: jamesbond
Date Posted: October 17, 2006 at 9:36 PM
Thanks for the posts. I have ran the Eclpise for a couple of weeks @ 2 ohms and had no problem. The amp does get warm but no thermal shutdown. But out of these two choices which one will have the most "bang for my buck".
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Shane
Posted By: geepherder
Date Posted: October 18, 2006 at 5:28 AM
My mistake, that article is a good read.
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My ex once told me I have a perfect face for radio.
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