Excurzion Posted May 26, 2011 Report Share Posted May 26, 2011 I just built a box my my new sub and i got it all set up today but when i turn the volume up kinda high the low bass distorts kinda bad. And i know my amp isnt cli[pping the sub because this didnt happen on my 15 inch l7. But also my box is sealed 47" width 21" wide and 17" tall and the amp is a rf bd1500.1 the lowest you can tune the amp is 50 hz i believe. Any help would be greatly appreciated. Lol and subwoofer is in title... Quote Link to comment Share on other sites More sharing options...
big dee Posted May 26, 2011 Report Share Posted May 26, 2011 You can't use a seal box on that sub. Quote Link to comment Share on other sites More sharing options...
Excurzion Posted May 26, 2011 Author Report Share Posted May 26, 2011 hmmm alright thanks i will change my box design tommorow and see what happens. Quote Link to comment Share on other sites More sharing options...
big dee Posted May 26, 2011 Report Share Posted May 26, 2011 Your lucky it didn't fry. Cause there real stiff an are made for vented boxes only Quote Link to comment Share on other sites More sharing options...
Guest Posted May 26, 2011 Report Share Posted May 26, 2011 how is the amp tuned to 50hz? i assume you mean the LPF so set the low pass filter to 80hz (you dont have to be exaxct). turn the subsonic switch on as well. Quote Link to comment Share on other sites More sharing options...
Excurzion Posted May 26, 2011 Author Report Share Posted May 26, 2011 Wow i heard they needed ported boxes but i didnt think it was that serious i will fix it tommorow the sub is still in the same condition because i only played it for a bit today and realized that i should figure out why it didnt sound as great as it should before playing it any more. Do you have any suggestions on size of port or if i should do a rectangle or tube port? Btw thanks for the help man. Quote Link to comment Share on other sites More sharing options...
Guest Posted May 26, 2011 Report Share Posted May 26, 2011 Wow i heard they needed ported boxes but i didnt think it was that serious i will fix it tommorow the sub is still in the same condition because i only played it for a bit today and realized that i should figure out why it didnt sound as great as it should before playing it any more. Do you have any suggestions on size of port or if i should do a rectangle or tube port? Btw thanks for the help man. yes the HDC3's NEED ported boxes. email DJ from audioque and ask him for recommended box/port dimensions. Quote Link to comment Share on other sites More sharing options...
AMI CUSTOMS Posted May 26, 2011 Report Share Posted May 26, 2011 The HDC3 18 needs 5-6 cubes and 16 sq inches of port per cube tune to your liking, I would say 35-38 hz is where that subs likes to get loud. Quote TEAM SOUNDQUBED -- TEAM SOUTH TEAM S.O.B. - Founder & Captain 3x Streetbeat World Record Holder 2017 MWSPL 1st place Mayhem & 4th Xtreme 4 2016 MWSPL 1st place Mayhem/2nd Adv 4/2nd Xtreme 4 2015 MWSPL 2nd place Mayhem & 4th Xtreme 4 2014 USACI 2nd place Streetbeat 5 - 162.6 db 2014 MWSPL 2nd place Xtreme 4 - 144.9 db 2013 USACI 1st place Streetbeat 4 - 161.9 db 2013 USACI 1st place Street Q+ - 162.8 db 2013 MWSPL 3rd Kaos2 & 4th Xtreme 4 2011 USACI 2nd place MOD 1001-2k - 160.0 db 2011 MWSPL 4th place: Adv3 - 157.8 db, Kaos2 - 150s db, Xtreme4 - 140s db 2010 ARSPL 1st place 501-750 - 160.3 db Arkansas loudest Best score to date 164.4 db - Termlab Outlaw Streetbeat 4 - 161.9 db Streetbeat 5 - 162.6 db MWSPL on Dash Legal door open (Music) - 162.5 db Sealed on dash Legal (Music) - 161.1 db - Termlab THE BLACK NASTY CURRENT BUILD & FAB The Black Nasty (6) 15 Rebuild Log 2012 (4) 15 Walled Sierra Build Log Evo X build log Facebook page The Black Nasty Link to comment Share on other sites More sharing options...
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