bass_addict07 Posted April 10, 2011 Report Share Posted April 10, 2011 ok so i have 2 15" american bass xfls running off of 1 audioque 2200d the settings on the amp are lpf half way up which is around 100hz subsonic 0 bass boost 0 and gain is almost 3/4 up anyways my subs sound like they are bottoming out or just being clipped severly and i dont understand why but when i turn down the lpf or gain it goes away ive been talking to mike singer because he designed the box and has helped me alot with the build and hes thinking it could be the aero port lenght in my box i have 4 4inch aero ports in a 6.5 cu ft box and they are 15 inches long each so would shortening them help to stop the bottoming out? or what else could it be??? Quote 97 exploder xlt2 18" obsidian audio daul 2 v2s1 sundown audio saz1500d at .5 ohm2 sets of alpine type r components1 MB quart onyx 125.4alpine cda-98871 mike singer 250 amp altxs d3400 in the backall kicker wiringBIG 3singer resonance killer sound deadner throughout Link to comment Share on other sites More sharing options...
cwish2014 Posted April 10, 2011 Report Share Posted April 10, 2011 alright, not the best at this stuff but the only thing i can think of is, since its ported you need to set your subsonic to the port tuning. when you have your subsonic lower than what your port tuning is your sub will bottom out cause it cant produce lower than your port tuning frequency. so to fix this, talk to your box designer and find out what your port tuning is and set your sub sonic to the port tuning. thats the only thing i can think of. your lpf is fine and leave the bass boost alone. then tune your gain last Quote 1995 Ram 1500 SLT Fi BL 12 2.5 cube tuned to 32 hz Hifonics BRZ 1200.1 Alpine cda-105 0 gauge wiring kicker 5 1/4 all around Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted April 10, 2011 Report Share Posted April 10, 2011 (edited) ok so i have 2 15" american bass xfls running off of 1 audioque 2200d the settings on the amp are lpf half way up which is around 100hz subsonic 0 bass boost 0 and gain is almost 3/4 up anyways my subs sound like they are bottoming out or just being clipped severly and i dont understand why but when i turn down the lpf or gain it goes away ive been talking to mike singer because he designed the box and has helped me alot with the build and hes thinking it could be the aero port lenght in my box i have 4 4inch aero ports in a 6.5 cu ft box and they are 15 inches long each so would shortening them help to stop the bottoming out? or what else could it be??? That would just raise the tuning. put your ssf 5hz below box tuning, check your gain to see if it is right, 3/4ths seems like a lot to ME(mine is usually at 1/3). Edited April 10, 2011 by ChevyBoy95 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...
jmilch Posted April 10, 2011 Report Share Posted April 10, 2011 I agree the ssf should be set slightly higher than the tuning freq. Was the gain set with a dmm? It seems like you may actually just be clipping the amp. How does your electrical look? Quote Pioneer AVH-P4300DVD | Hertz 6.5 | Alpine Type R 6x9 | Custom 200A Alt | Knu Flek 1/0 Big 3 and all wiring | Eclipse EA3422 | AudioQue 2200d | DC XL 12 | Red Oak Box ~2.8 cubes @ 30 hz | Link to comment Share on other sites More sharing options...
TheyDontWantMusic Posted April 10, 2011 Report Share Posted April 10, 2011 I agree the ssf should be set slightly higher than the tuning freq. ya mean lower? the box works out to be tuned to about 35Hz. does it only make the noise on certain songs and frequencies? Quote Link to comment Share on other sites More sharing options...
fecupe2001 Posted April 13, 2011 Report Share Posted April 13, 2011 I agree the ssf should be set slightly higher than the tuning freq. ya mean lower? the box works out to be tuned to about 35Hz. does it only make the noise on certain songs and frequencies? pretty sure he ment that lol , anyways, i could give a couple of recomendations but damn, singer´s know his shit haha, so i say follow any step and input he gives you Quote I´m the SPL Gains topic creator!! wanna get louder?? check this: SPL Gains. Panamenian 2009 & 2010 & 2014 Bass Race 149.9 Champion! 2 15" subs and a 2K wired at 1 ohm, http://www.stevemeadedesigns.com/board/topic/167788-fecupe2001-2-15s-on-a-2k-video-on-page-3/ 8 Massive 15" subs and small power, http://www.stevemeadedesigns.com/board/topic/179296-fecupe2001s-8-15s-4th-order-bandpass-wall/ Link to comment Share on other sites More sharing options...
jmilch Posted April 13, 2011 Report Share Posted April 13, 2011 I agree the ssf should be set slightly higher than the tuning freq. ya mean lower? the box works out to be tuned to about 35Hz. does it only make the noise on certain songs and frequencies? Yea I meant lower sry Quote Pioneer AVH-P4300DVD | Hertz 6.5 | Alpine Type R 6x9 | Custom 200A Alt | Knu Flek 1/0 Big 3 and all wiring | Eclipse EA3422 | AudioQue 2200d | DC XL 12 | Red Oak Box ~2.8 cubes @ 30 hz | Link to comment Share on other sites More sharing options...
onelivinlarge Posted April 13, 2011 Report Share Posted April 13, 2011 smaller box will help Quote 1) lookj to left 2) NOTICE BLKUE 3) ME > Y9OU 4) that is all Link to comment Share on other sites More sharing options...
Guest Posted April 13, 2011 Report Share Posted April 13, 2011 set your subsonic filter. and if it sounds like theyre clipping, look at the bass knob (that i hope is attached to the amp) and see if that little red clipping light is blinking. if it is, turn the knob down til it stops Quote Link to comment Share on other sites More sharing options...
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