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4th order design help
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<blockquote data-quote="sherwood71" data-source="post: 8641477" data-attributes="member: 670043"><p>Vehicle :2009 Pontiac G8 GT</p><p></p><p>Location in the vehicle:trunk</p><p></p><p>Space available (Length x Width x Height):14x36x14</p><p></p><p>Subwoofer make and model<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue :p" loading="lazy" data-shortname=":p" />recision Power P.12D4</p><p></p><p>Subwoofer Size:12</p><p></p><p>Number of Subwoofers:1</p><p></p><p>Type of Port (Kerfed, Slot, Aero, etc.): slot port firing thru ski pass hole in rear seat (will get dimensions)</p><p></p><p>What type of music do you like?:listen to everything</p><p></p><p>Is your goal SPL or Everyday Music?:everyday</p><p></p><p>Tuning Freq (Hz):</p><p></p><p>Volume :</p><p></p><p>Questions: Will a 4th order work good with the dimensions that I have posted?</p><p></p><p>I have researched 4th orders and played with winisd but am having no luck figuring out the port.</p><p></p><p>Going to be powered by Precision Power P1000.1 at 2 ohm.</p><p></p><p>Woofer specs</p><p></p><p>Specifications</p><p></p><p>P.12D4</p><p></p><p>Fs (hz) 28.05</p><p></p><p>Qms 4.538</p><p></p><p>Vas (ft^3) 1.49</p><p></p><p>Cms (mm/n) 0.123</p><p></p><p>Mms (g) 261.63</p><p></p><p>Rms (kg/s) 17.9</p><p></p><p>Xmax 15</p><p></p><p>Xmech 22.5</p><p></p><p>Dia (in.) 9.8</p><p></p><p>Sd (in^2) 49.09</p><p></p><p>Vd (ft^3) 0.039</p><p></p><p>Qes 0.542</p><p></p><p>Re (ohms) 7.212</p><p></p><p>Z (ohms) 8</p><p></p><p>BL 26.6</p><p></p><p>Pe (watts) 800</p><p></p><p>Qts 0.484</p><p></p><p>No 0.182</p><p></p><p>1w/1m SPL 84.64</p><p></p><p>2.8v SPL 85.2</p><p></p><p>VC DIA (IN) 2.5</p><p></p><p>VC (Ohms) DVC 4</p><p></p><p>M-vd (ft^3) 0.19</p><p></p><p>Cut-out 11.13</p><p></p><p>Depth 6.375</p></blockquote><p></p>
[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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