Zak Massey Posted July 16, 2013 Author Report Share Posted July 16, 2013 Knowing that I am pushing 2500 watts per sub, how large should I make the box to get the max spl from it? '03 Cavalier LS Coup DC Power 270xp alt 2 Sundown Neo Pro 8's 2 Selenium ST200 tweeters 1 Sundown SAX-125.2 1 CT Sounds 125.2 2 Fi Bl 18's walled 1 CT Sounds AT7000.1D Link to comment Share on other sites More sharing options...
DylanBunch Posted July 16, 2013 Report Share Posted July 16, 2013 definitely on the small side of the recommended size, so fi says 5-8 id do 5.5-6 ( just my suggestion, im sure a box expert can chime in ) 2006 Ford Explorer 2 Team AA/Sundown 15s 6th order Ct Sounds 7k 4 PRV Mr500 8s Rockford p1000-2 Team Subsonic Lows Link to comment Share on other sites More sharing options...
Sergeant_Skyrim Posted July 16, 2013 Report Share Posted July 16, 2013 General rule is if you're running over rated RMS, stick to the lower side of the suggested volume. If you're underpowering, then stick to the higher side. Less volume in the box = harder time subs will have moving which will be compensated for with more power. More volume is closer to free-airing them in a sense where they don't have as hard of a time moving. You should be able to do a 50 though with 2 18s on 5k and still be musical too. Guy in Orlando last summer or the summer before had a 2 door Cav with 2 18s (don't know the power) and it was pretty damn loud and I think he was moving some air too. tl;dr-http://www.youtube.com/watch?v=-hjqrxfvJ0A Build in progress Link to comment Share on other sites More sharing options...
Zak Massey Posted July 16, 2013 Author Report Share Posted July 16, 2013 I suppose with displacement, port and sub, I'll aim to be around 10.6 cuft (5.3 per sub) With all hopes having enough room to get a port that's tuned right at 31 hz. Sound about right? '03 Cavalier LS Coup DC Power 270xp alt 2 Sundown Neo Pro 8's 2 Selenium ST200 tweeters 1 Sundown SAX-125.2 1 CT Sounds 125.2 2 Fi Bl 18's walled 1 CT Sounds AT7000.1D Link to comment Share on other sites More sharing options...
Zak Massey Posted July 16, 2013 Author Report Share Posted July 16, 2013 And one more question: When measuring a box to find how large the volume is, do you include the port or not? Say the box is 23.25 x 18.25 x 21.25 and the port IS in that space, Is the box 5.22 cuft or is it smaller because of the port? '03 Cavalier LS Coup DC Power 270xp alt 2 Sundown Neo Pro 8's 2 Selenium ST200 tweeters 1 Sundown SAX-125.2 1 CT Sounds 125.2 2 Fi Bl 18's walled 1 CT Sounds AT7000.1D Link to comment Share on other sites More sharing options...
DylanBunch Posted July 17, 2013 Report Share Posted July 17, 2013 And one more question: When measuring a box to find how large the volume is, do you include the port or not? Say the box is 23.25 x 18.25 x 21.25 and the port IS in that space, Is the box 5.22 cuft or is it smaller because of the port? I believe that would be 5.22 gross, then once sub/port/bracing displacement is keyed in, the volume would become the net volume 2006 Ford Explorer 2 Team AA/Sundown 15s 6th order Ct Sounds 7k 4 PRV Mr500 8s Rockford p1000-2 Team Subsonic Lows Link to comment Share on other sites More sharing options...
TeamHT Posted July 17, 2013 Report Share Posted July 17, 2013 It could be part of your gross volume but it is not a part of your net volume Tell me...does this smell like chloroform to you? Link to comment Share on other sites More sharing options...
Zak Massey Posted July 17, 2013 Author Report Share Posted July 17, 2013 And net volume is what matters for the sub correct? so it would be 5.22 - .26(sub) - .86 (for the port) = 4.1 cuft, and that's the volume that matters. correct? '03 Cavalier LS Coup DC Power 270xp alt 2 Sundown Neo Pro 8's 2 Selenium ST200 tweeters 1 Sundown SAX-125.2 1 CT Sounds 125.2 2 Fi Bl 18's walled 1 CT Sounds AT7000.1D Link to comment Share on other sites More sharing options...
Sergeant_Skyrim Posted July 17, 2013 Report Share Posted July 17, 2013 Yes, net volume for the sub to operate in takes out displacement for the sub itself, port, and any bracing inside of the box. Build in progress Link to comment Share on other sites More sharing options...
newschoolsoundz Posted July 17, 2013 Report Share Posted July 17, 2013 just a suggestion if you already have the 2 kicker amps sell em an buy other amps just my opinion but kicker amps where im at sell pretty well but theres better amps for the money Link to comment Share on other sites More sharing options...
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