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<blockquote data-quote="sherwood71" data-source="post: 8641477" data-attributes="member: 670043">Vehicle :2009 Pontiac G8 GTLocation in the vehicle:trunkSpace available (Length x Width x Height):14x36x14Subwoofer make and model<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue&nbsp; &nbsp; :p" loading="lazy" data-shortname=":p" />recision Power P.12D4Subwoofer Size:12Number of Subwoofers:1Type of Port (Kerfed, Slot, Aero, etc.): slot port firing thru ski pass hole in rear seat (will get dimensions)What type of music do you like?:listen to everythingIs your goal SPL or Everyday Music?:everydayTuning Freq (Hz):Volume :Questions:&nbsp; Will a 4th order work good with the dimensions that I have posted?I have researched 4th orders and played with winisd but am having no luck figuring out the port.Going to be powered by Precision Power P1000.1 at 2 ohm.Woofer specsSpecificationsP.12D4Fs (hz)&nbsp; &nbsp; 28.05Qms&nbsp; &nbsp; 4.538Vas (ft^3)&nbsp; &nbsp; 1.49Cms (mm/n)&nbsp; &nbsp; 0.123Mms (g)&nbsp; &nbsp; 261.63Rms (kg/s)&nbsp; &nbsp; 17.9Xmax&nbsp; &nbsp; 15Xmech&nbsp; &nbsp; 22.5Dia (in.)&nbsp; &nbsp; 9.8Sd (in^2)&nbsp; &nbsp; 49.09Vd (ft^3)&nbsp; &nbsp; 0.039Qes&nbsp; &nbsp; 0.542Re (ohms)&nbsp; &nbsp; 7.212Z (ohms)&nbsp; &nbsp; 8BL&nbsp; &nbsp; 26.6Pe (watts)&nbsp; &nbsp; 800Qts&nbsp; &nbsp; 0.484No&nbsp; &nbsp; 0.1821w/1m SPL&nbsp; &nbsp; 84.642.8v SPL&nbsp; &nbsp; 85.2VC DIA (IN)&nbsp; &nbsp; 2.5VC (Ohms)&nbsp; &nbsp; DVC 4M-vd (ft^3)&nbsp; &nbsp; 0.19Cut-out&nbsp; &nbsp; 11.13Depth&nbsp; &nbsp; 6.375</blockquote>

[QUOTE="sherwood71, post: 8641477, member: 670043"] Vehicle :2009 Pontiac G8 GT Location in the vehicle:trunk Space available (Length x Width x Height):14x36x14 Subwoofer make and model:Precision Power P.12D4 Subwoofer Size:12 Number of Subwoofers:1 Type of Port (Kerfed, Slot, Aero, etc.): slot port firing thru ski pass hole in rear seat (will get dimensions) What type of music do you like?:listen to everything Is your goal SPL or Everyday Music?:everyday Tuning Freq (Hz): Volume : Questions: Will a 4th order work good with the dimensions that I have posted? I have researched 4th orders and played with winisd but am having no luck figuring out the port. Going to be powered by Precision Power P1000.1 at 2 ohm. Woofer specs Specifications P.12D4 Fs (hz) 28.05 Qms 4.538 Vas (ft^3) 1.49 Cms (mm/n) 0.123 Mms (g) 261.63 Rms (kg/s) 17.9 Xmax 15 Xmech 22.5 Dia (in.) 9.8 Sd (in^2) 49.09 Vd (ft^3) 0.039 Qes 0.542 Re (ohms) 7.212 Z (ohms) 8 BL 26.6 Pe (watts) 800 Qts 0.484 No 0.182 1w/1m SPL 84.64 2.8v SPL 85.2 VC DIA (IN) 2.5 VC (Ohms) DVC 4 M-vd (ft^3) 0.19 Cut-out 11.13 Depth 6.375 [/QUOTE]

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