Stee-Z Posted October 30, 2011 Report Share Posted October 30, 2011 (edited) everytime my sub hits ( 9515 DD) its not clean,well from inside of the car its sounds nice, but when you open the trunk it sounds like its trying to punch itself out. my Lpf is at 25 and high pass is around 70, gain 3/4 , bass boost off. i'm running on an AQ 2200, so it shouldn't be overpowering so i am just confused Why is it doing this? i really don't want to wreck the woofer any info would be appreciate. THANK YOU! Edited October 30, 2011 by Stee-Z Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
mlstrass Posted October 30, 2011 Report Share Posted October 30, 2011 keep the trunk closed, yes it's that simple. Assuming you're rear firing the sub is loading off the back wall of the trunk which helps to control the cone. Opening the trunk is causing the sub to unload/lose control Quote Link to comment Share on other sites More sharing options...
mlstrass Posted October 30, 2011 Report Share Posted October 30, 2011 also what is net size of box and tuning? Quote Link to comment Share on other sites More sharing options...
eaglescorpio1 Posted October 30, 2011 Report Share Posted October 30, 2011 u mean your subsonic is at 25 and your low pass is at 70. correct? Quote Loud as f*ck, and sounds good doing it. Team built from here on out!!!! BIG things to come......... Missing link is the shite!!! Link to comment Share on other sites More sharing options...
Stee-Z Posted October 30, 2011 Author Report Share Posted October 30, 2011 5 ft3 at 30hz but i messed up and only gave it 10 sq in. of port , when i need like 16, and the subs facing up :/ Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
Stee-Z Posted October 30, 2011 Author Report Share Posted October 30, 2011 u mean your subsonic is at 25 and your low pass is at 70. correct? haha yeah sorry, tryingto multitask Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted October 30, 2011 Report Share Posted October 30, 2011 It's loosing its loading wall when you open the trunk. Quote Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/ Link to comment Share on other sites More sharing options...
Stee-Z Posted October 30, 2011 Author Report Share Posted October 30, 2011 so theres no way to fix it, just keep the trunk closed and turn it off if i open trunk correct? or keep at lower volume Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
Katt Posted October 30, 2011 Report Share Posted October 30, 2011 (edited) Box is only 5 cubes? I would of made it around 6. And only 10 sq in of port? Wayyyy to small. Definitely sounds like a box problem. I would do around a 6 cube box, with around 15-16 sq inch's of port. Well yeah, and the fact your opening the trunk, its going straight out. But still, box is way to small. Also, I would try to set your subsonic, maybe 2-3 hz below your box tuning. Just to play it safe too. Edited October 30, 2011 by Katt Quote *06 330i - Sundern x12 - saz-3500* *91 Foxbody V1 S-Trim Notch* Link to comment Share on other sites More sharing options...
Stee-Z Posted October 30, 2011 Author Report Share Posted October 30, 2011 Box is only 5 cubes? I would of made it around 6. And only 10 sq in of port? Wayyyy to small. Definitely sounds like a box problem. I would do around a 6 cube box, with around 15-16 sq inch's of port. yeah thats how smart i was being the nite i design it.. typed the calculation into the calculator wrong lol, never second guessed it. It's choking it off Quote (4)DD 9918's (2)DC 10k 8 6.5" focals 2 DD SS4 mid amps Audison Bit One processor Jl-cl-rlc line driver iPad in dash Dual Irragi 320a alts 8 batcaps 4000's Second Skin sound deadened Link to comment Share on other sites More sharing options...
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