djm Posted December 6, 2011 Report Posted December 6, 2011 I'm building a new box for four Rockford Fosgate P2D2 12 inch sub woofers and Ive made a few box ideas, which one do you think is best? I like the first box better because of the tuning frequency, but look at the difference in port area per cubic foot. which one would hit harder and or be louder? ALSO the aero port is going to be made out of pvc pipe, any ideas or tips for mounting it into the box? —---BOX DESIGN #1----- BOX- Box Height: 14” Box Height 2: Box Width: 34” Box Depth: 38’ Box Depth 2: N/A” Port Diameter: 6” Number of Ports: 3 Port Length: 20” Length of External Port: 0” Physical Port Length: 20” Number of Baffles: 0 Baffle Thickness: 0” Baffle Displacement: 0.00 ft3 Sub Displacement: 0 ft3 Bracing Displacement: .24 ft’ Gross Volume: 8.58 ft3 Port Volume: 1.07 ft3 Port Area Per Cubic Foot: 11.66 Port Area: 84.78 in2 Net Volume: 7.27 ft3 Tuning Frequency: 33.74 Hz ---------------------------------- ~~~~BOX DESIGN #2~~~~ -------BOX------ Box Height: 14'' Box Height 2: '' Box Width: 34'' Box Depth: 38'' Box Depth 2: N/A'' -------PORT------ Port Diameter: 8'' Number of Ports: 2 Port Length: 18.5'' Length of External Port: 0'' Physical Port Length: 18.5'' Number of Baffles: 0 Baffle Thickness: 0'' Baffle Displacement: 0.00 ft Sub Displacement: 0 ft Bracing Displacement: .2 ft Gross Volume: 8.58 ft Port Volume: 1.13 ft Port Area Per Cubic Foot: 13.86 Port Area: 100.48 in Net Volume: 7.25 ft Tuning Frequency: 37.35 Hz Live it Loud!
AmericanLegend Posted December 8, 2011 Report Posted December 8, 2011 Do another design with only one port.
412 CVX Posted December 8, 2011 Report Posted December 8, 2011 is the box height really only two inches? Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid.
loudNlow87 Posted December 9, 2011 Report Posted December 9, 2011 is the box height really only two inches? That is one hell of an angle. What calls for that? '11 Jeep Patriot New Build Head Unit: Pioneer AVH-P3200DVD Front: Massive CK69 Components Front Amp: Massive NX2 Rears: Infinity Kappa's Subs: 8 Sundown SA-8 v2's Sub Amp: AB 450.1 XS D3100 Come on 150!
zxsonnyxz Posted December 9, 2011 Report Posted December 9, 2011 It's Height #2, and its blank. STD Passat Build 151db+STD Omega BuildMitsubishi Colt Build - Alpine|Focal|PeerlessHome Stereo BuildSmall Tang Band build - 4" fullrangeBox for 4 8"My Saab 9000 Build- I'd be very happy if you cared to check out the logs and give feedback!
412 CVX Posted December 9, 2011 Report Posted December 9, 2011 I'm seeing quite a few numbers that don't make sense here. what program are you using? I'm building a new box for four Rockford Fosgate P2D2 12 inch sub woofers and Ive made a few box ideas, which one do you think is best? I like the first box better because of the tuning frequency, but look at the difference in port area per cubic foot. which one would hit harder and or be louder? ALSO the aero port is going to be made out of pvc pipe, any ideas or tips for mounting it into the box? —---BOX DESIGN #1----- BOX- Box Height: 14” Box Height 2: N/A Box Width: 34” Box Depth: 38’ Box Depth 2: N/A” Port Diameter: 6” Number of Ports: 3 Port Length: 20” Length of External Port: 0” Physical Port Length: 20” Number of Baffles: 0 Baffle Thickness: 0” Baffle Displacement: 0.00 ft3 Sub Displacement: 0 ft3 Bracing Displacement: .24 ft’ Gross Volume: 8.58 ft3 Port Volume: 1.07 ft3 Port Area Per Cubic Foot: 11.66 Port Area: 84.78 in2 Net Volume: 7.27 ft3 Tuning Frequency: 33.74 Hz ---------------------------------- ~~~~BOX DESIGN #2~~~~ -------BOX------ Box Height: 14'' Box Height 2:N/A '' Box Width: 34'' Box Depth: 38'' Box Depth 2: N/A'' -------PORT------ Port Diameter: 8'' Number of Ports: 2 Port Length: 18.5'' Length of External Port: 0'' Physical Port Length: 18.5'' Number of Baffles: 0 Baffle Thickness: 0'' Baffle Displacement: 0.00 ft Sub Displacement: 0 ft Bracing Displacement: .2 ft Gross Volume: 8.58 ft Port Volume: 1.13 ft Port Area Per Cubic Foot: 13.86 Port Area: 100.48 in Net Volume: 7.25 ft Tuning Frequency: 37.35 Hz okay there needs to be at least 1 baffle that's at least .75" thick. and unless you're running the subs inverted, there needs to be a number in there for sub displacement. i misread the box height. ignore my previous post Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid.
loudNlow87 Posted December 9, 2011 Report Posted December 9, 2011 It's Height #2, and its blank. True story. Missed that one.. '11 Jeep Patriot New Build Head Unit: Pioneer AVH-P3200DVD Front: Massive CK69 Components Front Amp: Massive NX2 Rears: Infinity Kappa's Subs: 8 Sundown SA-8 v2's Sub Amp: AB 450.1 XS D3100 Come on 150!
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