fox_racin4 Posted March 5, 2011 Report Share Posted March 5, 2011 Ive never ran a SSF and have never had a problem, it coulda been your box flexing or if box is close to something in trunk, that would also make noise if box moves and hits it Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
Socky Posted March 5, 2011 Report Share Posted March 5, 2011 Im thinking it might be that the port is flexing. Besure to brace the box well and port. Quote Jeep Cherokee 4dr -4.75 in front, new rusty's 4.5 in rear leafs -micky thompson 35x14.50x15 -locker rear -Rusty's offroad Engine/transmission/transfer case/crossmember/gas tank skid plates -Warn front bumper with 8000lb winch -Custom rear bumper -Warrior product tube doors (summertime) -Optima redtop (starter) -26XK miles and still runs like a bat out of hell Kenwood H/U 1/0 wire, 136 amp alt 200 ah batteries 12.7 daily 2 Apsm 1500 @ 2 ohm strapped on zv3 d1 with ns softparts Mb quart 125.4 wired to 4 aura 6's 3.6 cube box tuned to 36 plays down to 23hz Link to comment Share on other sites More sharing options...
Guest Posted March 5, 2011 Report Share Posted March 5, 2011 by the way OP, if your box is bigger than spec, then you need LESS power. if your box is smaller, then you need MORE power Quote Link to comment Share on other sites More sharing options...
vettetruck Posted March 6, 2011 Author Report Share Posted March 6, 2011 its all beginning to make sense Quote Link to comment Share on other sites More sharing options...
Robert8252 Posted March 6, 2011 Report Share Posted March 6, 2011 (edited) My subsonic is 9hz below my box tuning...... Depends on install and F3 of your car. But op. You very well could be clipping. Maybe not all the time but that certain note could be at a higher DB in that song so while the other 37376 songs you listen to might be fine that one song will drive your amp into clipping. Was it more of a pop pop pop sound or something hitting metal? Edited March 6, 2011 by Robert8252 Quote 2013 F150 Crew Cab Old Build Log Feedback 2013 F150 Equipment - Some Awesome Stereo Sound Making Stuff Link to comment Share on other sites More sharing options...
vettetruck Posted March 6, 2011 Author Report Share Posted March 6, 2011 Yea, it sounded like someone put a marble on the cone of my woofer... Hasn't happened again.. I even played late night tip without a problem Quote Link to comment Share on other sites More sharing options...
elastic Posted March 14, 2011 Report Share Posted March 14, 2011 what was to song where your subs bottomed out? Quote my 15 L7 build my youtube channel with lots of L7 videos Link to comment Share on other sites More sharing options...
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