Keveeno Posted March 27, 2013 Report Share Posted March 27, 2013 Looking to build a custom box for my fi sp4 18. Any suggestions for a good box or even specs for that matter? Ported, 4th order, 6th order, etc? What are your thoughts on tuning as well? Was thinking of 31 or 32ish hz. Link to comment Share on other sites More sharing options...
zydrix Posted March 27, 2013 Report Share Posted March 27, 2013 I have mine in 7.2 cubes tuned to 30hz an it slams!! Loves the lows. Have the sub on about 2k or so of power. Moves A LOT of air My build 98 s10 2.2 3 american bass HD 15s with psi soft parts. (on there way here) atomic at-3000.1 (soon) 146.2 outlaw @39hz., bad alt an bad batt when termed (old 2 12" build) alpine 6.5s in doors infinty 4x6s in dash. clarion cz201 HU. mechman 240a H/O alt stuff i still need. SHCA 2/0 wire SHCA 1/0 to 2/0 adapters Atomic AT-3000.1 Lots of sound deadner new mids an highs, still debating on what to do. A few Deka g31 batts. Link to comment Share on other sites More sharing options...
Keveeno Posted March 27, 2013 Author Report Share Posted March 27, 2013 Thanks!! Link to comment Share on other sites More sharing options...
Cc2cuz Posted March 28, 2013 Report Share Posted March 28, 2013 I have mine in a 6.25 ported box tuned to 30 hz on a little under 4k and I'm very happy with it Link to comment Share on other sites More sharing options...
x91evo Posted March 28, 2013 Report Share Posted March 28, 2013 plain ole regular ported seems to be the simplest ha Link to comment Share on other sites More sharing options...
Joe X Posted March 28, 2013 Report Share Posted March 28, 2013 Looking to build a custom box for my fi sp4 18. Any suggestions for a good box or even specs for that matter? Ported, 4th order, 6th order, etc? What are your thoughts on tuning as well? Was thinking of 31 or 32ish hz. Post max dims for a box, vehicle and amp models. Link to comment Share on other sites More sharing options...
Keveeno Posted March 28, 2013 Author Report Share Posted March 28, 2013 Looking to build a custom box for my fi sp4 18. Any suggestions for a good box or even specs for that matter? Ported, 4th order, 6th order, etc? What are your thoughts on tuning as well? Was thinking of 31 or 32ish hz. Post max dims for a box, vehicle and amp models. total maximum available outside dimensions for a regular square box is 39.5" wide, wanna stay no taller than 20.5" but I can go 23" tall, and 24" deep. The depth of the box can be the last variable to play with. Isuzu rodeo LS. Amp is an aq3500d that will be run at 1 ohm (4300 rms). The amp will probably be clapped at 3500 rms. Link to comment Share on other sites More sharing options...
Joe X Posted March 28, 2013 Report Share Posted March 28, 2013 Barely enough space for a ported box, regarding your dimensions is 24 deep right against the rear gate? or you have left some space, if so, what's the length? Link to comment Share on other sites More sharing options...
Keveeno Posted March 30, 2013 Author Report Share Posted March 30, 2013 Barely enough space for a ported box, regarding your dimensions is 24 deep right against the rear gate? or you have left some space, if so, what's the length?im pretty sure the depth can go to 27 inches max but that would make it flush with the back door. So to answer your question 3". Link to comment Share on other sites More sharing options...
bkolfo4 Posted March 30, 2013 Report Share Posted March 30, 2013 The SP4 can run in a small box and sound great. 5 cuft net is enough. Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz. Link to comment Share on other sites More sharing options...
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