smokeumtires Posted November 20, 2007 Report Share Posted November 20, 2007 I got the design from a member on this forum but I just wanna make sure if 305.5sq" of port area (12.8/cube), 23.9cube enclosure (5.97/sub) tuned at 33.66hz Is the right tuning for these speakers.Just wanna make sure.Thnx Link to comment Share on other sites More sharing options...
01xtreme Posted November 20, 2007 Report Share Posted November 20, 2007 thats alot of port area, but then again you are running 4-15's. looks about right to me. My System: Pioneer AVH-P3200BT 4-Dayton 7 inch reference series (front doors) 8-Onkyo 3/4 inch tweeters (dash) 1-Sundown Audio 100.4D (mids/highs) 2-18" BTL's (for now) Crescendo 3kwp (for sale) Complete rebuild coming soon... Link to comment Share on other sites More sharing options...
SPL2K Posted February 4, 2008 Report Share Posted February 4, 2008 If its a wall, i would tune a little higher. Michael Hughes = 6X SPL World Champion - Loudest on the planet in db Drag, USACi, and IASCA. Link to comment Share on other sites More sharing options...
smokeumtires Posted February 4, 2008 Author Report Share Posted February 4, 2008 If its a wall, i would tune a little higher. well i switched subs.....I was goin with L7's but now I got 4 18" BTLS....would that still be too low? Link to comment Share on other sites More sharing options...
loganberry Posted February 4, 2008 Report Share Posted February 4, 2008 well i switched subs.....I was goin with L7's but now I got 4 18" BTLS....would that still be too low? thats pretty low, im doing my single 15" to 37hz, but those subs are different, idk i would go to around 34, 35Hz with those subs My F-150 Build GET ON THE BANDWAGON what if they tried messing with the amps when the subs werent louder hahah jk Link to comment Share on other sites More sharing options...
Slinky Posted February 4, 2008 Report Share Posted February 4, 2008 yeah, you could do it a tad higher if its a wall DD M4 Rockford Fosgate P500-4 SoundQubed HDC415 w carbon fiber cap 2 Rockford Fosagate T1675-S XS Power D3400 Under Hood XS Power D5100 in rear Michael Singer 200A Alt Build Log: http://www.stevemeadedesigns.com/board/topic/153901-2012-veloster-update-842013-wall-build-4-15s/ Link to comment Share on other sites More sharing options...
fourlug Posted February 4, 2008 Report Share Posted February 4, 2008 Why higher tuning if its in a wall?? Link to comment Share on other sites More sharing options...
Decaf Posted February 4, 2008 Report Share Posted February 4, 2008 I got the design from a member on this forum but I just wanna make sure if 305.5sq" of port area (12.8/cube), 23.9cube enclosure (5.97/sub) tuned at 33.66hz Is the right tuning for these speakers.Just wanna make sure.Thnx per fi forum: BTL 15 – Ported box we recommend using 3-5 cubic feet @ 30-35Hz. Again use 12-16 square inches of vent area per cubic foot of volume. imo i would do 20cuft@34hz with 280-300sqin port thats going to be loud whatever size and tuning you end up with Link to comment Share on other sites More sharing options...
Slinky Posted February 4, 2008 Report Share Posted February 4, 2008 (edited) Why higher tuning if its in a wall?? wavelength. my wall was tuned to 42 hz and it still got down pretty damn good. id say 38-40 would be better though. Edited February 4, 2008 by Slinky DD M4 Rockford Fosgate P500-4 SoundQubed HDC415 w carbon fiber cap 2 Rockford Fosagate T1675-S XS Power D3400 Under Hood XS Power D5100 in rear Michael Singer 200A Alt Build Log: http://www.stevemeadedesigns.com/board/topic/153901-2012-veloster-update-842013-wall-build-4-15s/ Link to comment Share on other sites More sharing options...
fourlug Posted February 4, 2008 Report Share Posted February 4, 2008 wavelength. my wall was tuned to 42 hz and it still got down pretty damn good. id say 38-40 would be better though. Please elaborate, "wavelength" doesn't really answer my question. What is the downside to tuning a wall at 33hz? Link to comment Share on other sites More sharing options...
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