JL15wo or RFhe12’s
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=38625
Printed Date: May 14, 2025 at 7:45 AM
Topic: JL15wo or RFhe12’s
Posted By: furflier
Subject: JL15wo or RFhe12’s
Date Posted: September 05, 2004 at 9:09 AM
What would give the best sq.I am running 2 JL 15wo's right now. Or do I need tobuild another box and run 2 RF he12's. The 12's are just sitting in the closet collecting dust . So 1 pair needs to go.
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Replies:
Posted By: raydawg357
Date Posted: September 07, 2004 at 9:21 AM
The 15's will give you a deeper bass, but the 12's will be cleaner. I see you're running a 1/2 farad cap with that 500.2 I would run a full farad
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Do it right the first time
Posted By: furflier
Date Posted: September 07, 2004 at 7:45 PM
Thanks for the input. Why go with a farad cap? My lights don't dim at all with the 1/2. Would there be that much of a diff. running a full verses a 1/2.
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Posted By: raydawg357
Date Posted: September 08, 2004 at 9:51 AM
If your not having any problems, then that's cool. I have the same amp pushing 2 JL 15W3D4's and I have 2 full farad caps. 1/2 farad caps are designed for 500 watts and less. That amp, if bridged, puts out close to 800.
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Do it right the first time
Posted By: furflier
Date Posted: September 08, 2004 at 7:21 PM
raydawg357 wrote:
That amp, if bridged, puts out close to 800.
How can that be when the amp only calls for a 50amp fuse. BTW I do have it bridged. Its the only way I have ever ran this amp. -------------
Posted By: raydawg357
Date Posted: September 09, 2004 at 7:16 AM
The fuse size protects the interior circuits and doesn't have anything to do with output. Your amp came with a spec sheet from Fosgate and bridged, the 500.2 averages around 753 watts
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Do it right the first time
Posted By: furflier
Date Posted: September 09, 2004 at 9:50 AM
https://www.the12volt.com/ohm/page2.asp Look here to calculate the amount of power you will get using a 50 amp fuse @14.4v. Power is 720w. This is the very most you will get before the fuse will blow. 650 to 675 watts would be a little more realistic. -------------
Posted By: jeffchilcott
Date Posted: September 09, 2004 at 12:41 PM
i am just trying to figure out how we got from a SQ topic to adding a cap., adding a cap will not improve your SQ unless you are struggling very very badly for power which you say you are not. Really for SQ i try to stay with 10's but 12 can work just as well. i really would stay away from the 15's
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Posted By: furflier
Date Posted: September 09, 2004 at 4:43 PM
Yea I am going to pull the 15's out within the next week or two. I'll be putting my 12's in. If I had 10's I would use them preferably 4 of them. -------------
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