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amp and sub 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=69337
Printed Date: July 21, 2025 at 12:03 PM


Topic: amp and sub wiring

Posted By: markmgm
Subject: amp and sub wiring
Date Posted: December 27, 2005 at 8:36 PM

Hey everyone, i have a dual voice coil sub and was wondering how i should wire it, i have found an amp but not sure if it can run 8 ohms when the coils are wired in series, any help appriciated thanks



Replies:

Posted By: geepherder
Date Posted: December 27, 2005 at 9:33 PM

Almost any amp will run at 8 ohms.  You didn't mention what you have, but issues arise from running a lower than nominal impedence (less than 4 ohms) rather than higher.  A higher impedence will help the amp stay cool, and aid in keeping THD (distortion) down.  The downside would be less power produced.



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My ex once told me I have a perfect face for radio.




Posted By: markmgm
Date Posted: December 27, 2005 at 10:41 PM
Thanks for the quick reply, i have a clarion SRW1283 sub which is 300rms, i am confused about what kind of amp to get for the power needed, any suggestions?




Posted By: stevdart
Date Posted: December 28, 2005 at 10:35 AM

Answer:  A two channel amplifier, that when bridged, will output 500 watts into a 4 ohm bridged load (for example, this Kicker SX 500.2 which could later be used to power a set of 4 ohm components at 2 X 125 watts).

With your 8 ohm woofer you would get 250 watts.  In the future when you are due for a system upgrade, you can use this amp to power a set of components and buy a mono amp and higher output DVC 4 ohm sub.  Then you would be able to parallel-wire the sub to 2 ohms for use with the mono amp.



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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: markmgm
Date Posted: December 29, 2005 at 10:10 PM
thanks for the reply, so if i had a 500wrms amp it would not reck the sub or anything, i wanna get clear bass and doesnt sound like it is struggling for power or anything, its only going in a civic sedan





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