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<blockquote data-quote="HowLowd" data-source="post: 3033158" data-attributes="member: 550161">Im building a floor with four cubes for a single fifteen that was sold to me by teamquakecelica.&nbsp; Im trying to figure up a tune of about 27hz, can you help me out? THe specs are below. Im looking at doing a square port through the rear speaker holes.Specs for the 15&quot; Model as well:Revc = 4.0229 ohmsFms = 27.3089 HzZmax = 38.5442 ohmsQes = 0.3948Qms = 3.3876Qts = 0.3536Le = 4.0277 mH (at 1 kHz)Diam = 325.7550 mm ( 12.8250 in )Sd =83343.5655 mm^2(129.1828 in^2)Vas = 152.9121 L ( 5.4000 ft^3)BL = 19.5766 N/AMms = 219.1788 gCms = 154.9648 uM/NKms = 6453.0791 N/MRms = 11.1017 R mechanicalEfficiency = 0.7412 %Sensitivity= 90.7176 dB @1W/1mSensitivity= 93.7030 dB @2.83Vrms/1m</blockquote>

[QUOTE="HowLowd, post: 3033158, member: 550161"] Im building a floor with four cubes for a single fifteen that was sold to me by teamquakecelica. Im trying to figure up a tune of about 27hz, can you help me out? THe specs are below. Im looking at doing a square port through the rear speaker holes. Specs for the 15" Model as well: Revc = 4.0229 ohms Fms = 27.3089 Hz Zmax = 38.5442 ohms Qes = 0.3948 Qms = 3.3876 Qts = 0.3536 Le = 4.0277 mH (at 1 kHz) Diam = 325.7550 mm ( 12.8250 in ) Sd =83343.5655 mm^2(129.1828 in^2) Vas = 152.9121 L ( 5.4000 ft^3) BL = 19.5766 N/A Mms = 219.1788 g Cms = 154.9648 uM/N Kms = 6453.0791 N/M Rms = 11.1017 R mechanical Efficiency = 0.7412 % Sensitivity= 90.7176 dB @1W/1m Sensitivity= 93.7030 dB @2.83Vrms/1m [/QUOTE]

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