Mikewood21 Posted January 23, 2012 Report Share Posted January 23, 2012 Hello everyone. I own a jeep grand Cherokee srt8 with four Rockford fosgate p3 15"s and two 1500.1 Rockford class d amp. I currently hit a 150.9 with this current setup. I'am looking for a more meaner system. I need help deciding wat will Give me more spl in my truck between four kicker l7 15"s and one crescendo audio bc5500 or two fi sp4 18"s and Two crescendo bc3500's. I have roughly about 13 to 14 cubic ft of airspace to play with.. Can anybody help me out. Link to comment Share on other sites More sharing options...
Dangrebel Posted January 23, 2012 Report Share Posted January 23, 2012 I hate to say it but the 4 L7's have more cone area and should be louder than 2 sp4's 1999 GMC Yukon, 6 PSI platform 5 18's, 4th order bandpass by BHE, Taramps, Link to comment Share on other sites More sharing options...
Mikewood21 Posted January 23, 2012 Author Report Share Posted January 23, 2012 I hate to say it but the 4 L7's have more cone area and should be louder than 2 sp4's That's wat I was thinking. But you no my Cherokee is a small truck compared to bigger truck trucks . You don't think the 18"s would breathe a lot better Link to comment Share on other sites More sharing options...
Rickdod3 Posted January 23, 2012 Report Share Posted January 23, 2012 Hello everyone. I own a jeep grand Cherokee srt8 with four Rockford fosgate p3 15"s and two 1500.1 Rockford class d amp. I currently hit a 150.9 with this current setup. I'am looking for a more meaner system. I need help deciding wat will Give me more spl in my truck between four kicker l7 15"s and one crescendo audio bc5500 or two fi sp4 18"s and Two crescendo bc3500's. I have roughly about 13 to 14 cubic ft of airspace to play with.. Can anybody help me out. There are so many variables that will go into this. My suggestion would be to play with different box designs with the p3's til you absolutely stop gaining...then if you are not satisfied I would switch woofers. That being said, for your jeep I would probably stick with 2 15's, two 18's you could fit, but it will limit the airspace you have for a enclosure more. I had two dd9515g's in my jeep and I was doing 151.9 sealed and 153.7 in the kick on about that same power you plan on running. Audio Technix Online Customer Service Specialist [email protected] Link to comment Share on other sites More sharing options...
k3n12ock Posted January 23, 2012 Report Share Posted January 23, 2012 (edited) I hate to say it but the 4 L7's have more cone area and should be louder than 2 sp4's Doesn't determine much besides having more cone area. I say with that space and that power, do the two 18s and get a well built box. Plus, the 18s would destroy the l7s in sheer performance and with having that many watts to each. But yeah, personally I would do 2 18s. I mean, l7's are a dime a dozen. Not every day someone see's some sp4s. Edited January 23, 2012 by k3n12ock 05 xB - (2) EVIL 18s - (2) BC3500s - NO WALL Channel 1: http://www.youtube.com/k3n12ock Channel 2: http://www.youtube.com/MrK3n12ock2 Link to comment Share on other sites More sharing options...
ALPINE408 Posted January 23, 2012 Report Share Posted January 23, 2012 I hate to say it but the 4 L7's have more cone area and should be louder than 2 sp4's you could not be more wrong! yes there is more cone area but the L7's cant take the beating that fi's can take nor are they even in the same ballpark when it comes to build quality or the fact that L7's dont have recones and are made in chiner land done right the 2 18's WILL MURDER the 4 15's done just ok the sp4's will still kill the L7's Have you ever had your woofers blown? Link to comment Share on other sites More sharing options...
Mikewood21 Posted January 23, 2012 Author Report Share Posted January 23, 2012 I hate to say it but the 4 L7's have more cone area and should be louder than 2 sp4's you could not be more wrong! yes there is more cone area but the L7's cant take the beating that fi's can take nor are they even in the same ballpark when it comes to build quality or the fact that L7's dont have recones and are made in chiner land done right the 2 18's WILL MURDER the 4 15's done just ok the sp4's will still kill the L7's Ok guys well let me ask you guys this. As far as the amps go are crescendo amplifiers badass like the reviews say they are. If so you gotta think that cone air does play a major factor sometimes 60in vs 30in Link to comment Share on other sites More sharing options...
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