rooles Posted April 2, 2014 Report Posted April 2, 2014 I have a logitech 2.1 system with a 8" sub that i want to builf a custom box for. I want the best possible sq from this box. Anyone know what kind of sq ft this sub would best perform in? Any ideas on a box design?
Krakin Posted April 2, 2014 Report Posted April 2, 2014 Are there any T/S parameters for it? Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener.
rooles Posted April 3, 2014 Author Report Posted April 3, 2014 I will look for them and post em once i get off work
Joe X Posted April 3, 2014 Report Posted April 3, 2014 Logitech does not sell standalone sub drivers (to my knowledge) only already boxed subs for PC multimedia applications.
rooles Posted April 3, 2014 Author Report Posted April 3, 2014 Here is what i found Re = 6.3855 ohmsFs = 42.0870 HzZmax = 88.8707 ohmsQes = 0.4579Qms = 5.9148Qts = 0.4250Le = 3.0745 mH (at 1 kHz)Diam = 167.3657 mm ( 6.5892 in )Sd =21999.9980 mm^2( 34.1001 in^2)Vas = 20.7600 L ( 0.7331 ft^3)BL = 13.2159 N/AMms = 47.3615 gCms = 301.9382 uM/NKms = 3311.9355 N/MRms = 2.1175 R mechanicalEfficiency = 0.3176 % Sensitivity= 87.0367 dB @1W/1mSensitivity= 88.0156 dB @2.83Vrms/1mKrm = 6.635E-03 ohms Freq dependent resistanceErm = 795.797E-03 Rem=Krm*(2*pi*f)^Erm Kxm = 61.619E-03 Henries Freq dependent reactance Exm = 638.739E-03 Xem=Kxm*(2*pi*f)^Exm Xmax is 8mm
rooles Posted April 22, 2014 Author Report Posted April 22, 2014 Could anyone help me with this build?
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