AcIdBuRn02ZTS Posted November 21, 2012 Report Share Posted November 21, 2012 Hey guys... I have perhaps a dumb question.. but here it goes anyways... I'm currently running 2 RE Audio SX 18s in a 14.5 cu. ft enclosure at 36hz... Ive seen guys on here running double the drivers in what appears to be less air space... With that being said... can I drop box volume (overall size) and still retain the performance I'm getting now? I love the way my setup sounds currently, but the box is friggen huge for what it is... According to RE, optimal airspace is 8 cu. ft. (per driver I assume?) So how are guys getting away with running any large driver combo such as 4 18s in boxes that appear smaller then mine? Am I missing something? I also wouldnt mind at all adding another 2 18s to this setup down the road with a different box... but how small can one go and still get quality sound and high output? Sorry if these are dumb questions... I've been out of the loop for a while. Thanks guys -Chris 03' Black Z71 Tahoe 3" Lift / 315/70/R17 Goodyear Duratracs Eclipse AVN6620 Touchscreen Head Unit Hifonics BRX3016 - 3krms @ 1ohm 2 RE Auido SX 18s - 14.5^3ft net @ 30hz w/ 200^2in. port120hp Cummins 4bta Swap Link to comment Share on other sites More sharing options...
Vito Basser Posted December 6, 2012 Report Share Posted December 6, 2012 I think you might have too much port area. What style box is it? Any pictures? Any goals in mind? what power are they getting? one thing I have learnt about boxes over the years is, they are like woman. Complicated and never happy! Link to comment Share on other sites More sharing options...
the_garynator Posted December 10, 2012 Report Share Posted December 10, 2012 well, minimum recommended is 5.5ft3. Are they running in a shared chamber? I would assume they are, so my general rule of thumb (others use this too), is 1.5x the recommended volume for 2 subs in a shared chamber. so .5 x 5.5 = 2.75. 2.75*3 = 8.25+5.5 = 13.75ft^3. That's probably why they are running that size. If you are running a shared chamber box, I'd say you could probably get away with somewhere between 8.25 and 12ft^3. I'd do closer to 12ft^3 though. If you do a 12 cube box, my guess is that you'll probably gain, or at least will be able to run them harder (assuming you're in a shared chamber box right now. Current Build: Project Flexington: 157.6db @ 37hz Parallel 6th order walk through, DC Neo Elite 18s, 4 DC 5.0ks, JY Lithium, 12 banks of XS Caps Old Builds:150db and HAIRTRICKs from 2x 12" Power Acoustik Mofos (6th order blow through) ;<p>Roadmaster Wagon Build - DC LVL 6 M3, Kicker Warhorse ; Godzilla swapped 240sx ; 6th Order Bandpass Alpine Type R 12 ; Fully loaded DC Level 5 18" 240sx Link to comment Share on other sites More sharing options...
suckerfreebass Posted December 10, 2012 Report Share Posted December 10, 2012 your askin how some people run 4 18s on smaller volume not all subs require same volume some 18s may only need half the space of what yours requires Link to comment Share on other sites More sharing options...
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