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<blockquote data-quote="blacknirvash" data-source="post: 7733972" data-attributes="member: 641531">what would you suggest for this particular build?&nbsp; i listed some of the acceptable measurements for my trunk in an earlier post. do you think multiple 4in ports would work?here are the trunk measurements: 32In wide at back seat, 47in wide at trunk lips, 51in wide at the floor. 30in from back seat to trunk latch, from the floor to the ceiling of the trunk is 18in.. here are two ideas listed in outer dimensions: 17.5H*25.5W*24D; 17.5H*31.5W*19.5D. i will be using 3/4In MDF. i know practically nothing about tuning to frequencies and would appreciate any knowledge that isnt strictly mathematical formulas so i can gain a better understanding of it all. also enclosed is the manufacturers jargon; Vented (Cu. Ft) 5,Vented to (Hz) 32, 3dB down point (-3dB Hz) 29, Port Diameter (&quot;) 8, Port Length (&quot;) 13, Number of Ports 2. SQUARE PORT INFO; Port Area (Sq/In.) 80, Port Length (&#039;&#039;) 13: PARAMETERSHK15X2; Fo&nbsp; (Hz) 29.581, QMS 3.965, QES 0.517, QTS 0.457, VAS (Liters) 147.723, REVC (Ohms) 1 (parallel), SPL @ 1 watt / 1 meter (dB) 90.6, X-max Linear pk-pk (mm) 70, LEVC at 1k Hz (mH) 1.043</blockquote>

[QUOTE="blacknirvash, post: 7733972, member: 641531"] what would you suggest for this particular build? i listed some of the acceptable measurements for my trunk in an earlier post. do you think multiple 4in ports would work? here are the trunk measurements: 32In wide at back seat, 47in wide at trunk lips, 51in wide at the floor. 30in from back seat to trunk latch, from the floor to the ceiling of the trunk is 18in.. here are two ideas listed in outer dimensions: 17.5H*25.5W*24D; 17.5H*31.5W*19.5D. i will be using 3/4In MDF. i know practically nothing about tuning to frequencies and would appreciate any knowledge that isnt strictly mathematical formulas so i can gain a better understanding of it all. also enclosed is the manufacturers jargon; Vented (Cu. Ft) 5, Vented to (Hz) 32, 3dB down point (-3dB Hz) 29, Port Diameter (") 8, Port Length (") 13, Number of Ports 2. SQUARE PORT INFO; Port Area (Sq/In.) 80, Port Length ('') 13: PARAMETERS HK15X2; Fo (Hz) 29.581, QMS 3.965, QES 0.517, QTS 0.457, VAS (Liters) 147.723, REVC (Ohms) 1 (parallel), SPL @ 1 watt / 1 meter (dB) 90.6, X-max Linear pk-pk (mm) 70, LEVC at 1k Hz (mH) 1.043 [/QUOTE]

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