Sub + Amp Decision

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=35677
Printed Date: September 14, 2025 at 9:34 AM

Topic: Sub + Amp Decision

Posted By: klutch
Subject: Sub + Amp Decision
Date Posted: July 16, 2004 at 12:36 AM

I'm kinda new to the whole car audio thing, doing it myself anyway. I was wondering if the Phoenix Gold Octane-R 12D ( https://www.cardomain.com/item/PHOR12D ) would work ok with the Kenwood KAC-X521 amp ( https://www.crutchfield.com/S-9FCfVtr7M42/cgi-bin/ProdView.asp?i=113KACX521&search=KAC%2DX521 ) and if they are fine what would be the best way to wire them up? also if anyway has the Octane-R 12D please let me know if you are satisfied with them.

Thanks

Replies:

Posted By: klutch
Date Posted: July 16, 2004 at 12:59 AM

Or do you guys think the Kenwood KFC W3009 would be a better choice?

Posted By: stevdart
Date Posted: July 16, 2004 at 5:24 PM

If you are planning on using two subs, you can use the type of amp you referred to. When the sub is a 4 ohm DVC, it will be either a 2 ohm or a 8 ohm sub when the coils are wired. Two combined would give the amp a 4 ohm load. If the plans are to use one sub, look at class D mono amps to power it, because they (check the model) can handle the 2 ohm load. Here is a wiring wizard.

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