white4d96 Posted June 13, 2011 Report Posted June 13, 2011 Looking into building a new box for my Type R 12's. Got a KX1200.1 coming to run them, but right now they're off a KX800.4. I'm thinking: 15hx18dx36w 3 4" ports at 24" (bent obviously) Should come out to 3.8@30hz. Good idea? Bad? I listen to a lot of low stuff so I want to have that bottom end, hence the low tuning. Too many projects, too little time...
RAM_Designs Posted June 13, 2011 Report Posted June 13, 2011 Just using my phone calc, I got about 3.6ft^3 after displacements, assuming no bracing. Didn't check your tuning though. Ryan Miskin - owner of RAM Designs I have my PM's turned off, please email at <script data-cfhash='f9e31' type="text/javascript"> /* */</script> 2200+ designs since March 2011...
white4d96 Posted June 14, 2011 Author Report Posted June 14, 2011 I reran it and got the same as before. I'm using Torres' box calc if that helps. Someone on another forum keeps telling me I should go sealed "for the best lows." Too many projects, too little time...
RAM_Designs Posted June 14, 2011 Report Posted June 14, 2011 36x18x15 = 4.45ft^3 before displacements. (pi*r^2)24/1728 for each port = ~.2ft^3 times three for three ports - .59ft^3 So right there you're at 3.86ft^3 before sub displacement, which should be in the .1-.12ft^3 range per sub. All in all it looks like 3.6ft^3 with a 33hz tuning. Ryan Miskin - owner of RAM Designs I have my PM's turned off, please email at <script data-cfhash='f9e31' type="text/javascript"> /* */</script> 2200+ designs since March 2011...
ISO Posted June 14, 2011 Report Posted June 14, 2011 I'm a guy that always runs sealed up to the last year and a half and I can tell you that I get much lower being ported. Isobaric - Refers to the practice of coupling two drivers together to make them act as one. "Giving up doesn't always mean you are weak; sometimes it means that you are strong enough to let go." Insanity: doing the same thing over and over again and expecting different results. The Destruction of a person builds character.
white4d96 Posted June 14, 2011 Author Report Posted June 14, 2011 Okay. Any thoughts on the box setup? I may decide to go lower on tuning, I don't know. Too many projects, too little time...
97SSBlazer Posted June 14, 2011 Report Posted June 14, 2011 I running mine in a slightly smaller box than recommended. 1.4 instead of 1.5 NET, tuned at 32Hz and I couldn't be happier, Great response and output plus I can do hair tricks lower tuning is just hard. I was surprised how loud 145 sounds at 35hz, and how quiet 145 sounds at 50hz. -= 2005 Tahoe LT =-Head unit: Pioneer AVH-X5500BHSSource: iPad Mini in dash Subs: 2 T1 12's Sub Amp: T1500-1bdCPWire: Rockford Fosgate 1/0 awgSignal Cable: MonsterFronts:Stock Bose for now:)Rears: Stock Bose for now:)MIds/High amp: Stock Bose for now:) 2005 Tahoe Build Log: http://www.stevemeadedesigns.com/board/topic/172529-2005-tahoe-my-17th-vehicle/ 2001 Monte Build Log: http://www.stevemeadedesigns.com/board/topic/160030-2001-monte-carlo-my-16th-car-lol/page-2#entry25309381997 Tahoe Build Log: http://www.stevemead...oe-6-15-rf-15s/2001 Impala Build Log: http://www.stevemead...katzkin-inside/
ISO Posted June 15, 2011 Report Posted June 15, 2011 I would shoot for something between 35 and 38 hertz. That seems to be good for both rock and rap IMO. Isobaric - Refers to the practice of coupling two drivers together to make them act as one. "Giving up doesn't always mean you are weak; sometimes it means that you are strong enough to let go." Insanity: doing the same thing over and over again and expecting different results. The Destruction of a person builds character.
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