arrhythmia jeep Posted September 9, 2013 Report Posted September 9, 2013 im in the process of building a box for this sub : RSS390HO-4 15" Reference HO Subwoofer 4 Ohm RODUCT SPECIFICATIONS Power Handling (RMS) 800 Watts Power Handling (max) 1,600 Watts Impedance 4 ohms Frequency Response 21 to 600 Hz Sensitivity 87 dB 1W/1m Voice Coil Diameter 2.5" Magnet Weight 150 oz. THIELE-SMALL PARAMETERS Resonant Frequency (Fs) 24.2 Hz DC Resistance (Re) 3.3 ohms Voice Coil Inductance (Le) 1.83 mH Mechanical Q (Qms) 4.48 Electromagnetic Q (Qes) 0.42 Total Q (Qts) 0.39 Compliance Equivalent Volume (Vas) 3.87 ft.³ Mechanical Compliance of Suspension (Cms) 0.11 mm/N BL Product (BL) 21.52 Tm Diaphragm Mass Inc. Airload (Mms) 380.6g Maximum Linear Excursion (Xmax) 12 mm Surface Area of Cone (Sd) 829.6 cm² BOX SIZE (MODELED WITH BASS BOX USING HIGH FIDELITY SETTINGS) Sealed Volume 1.58 ft.³ Sealed F3 50 Hz Vented Volume 2.72 ft.³ Vented F3 30 Hz the amp is a hifonics brx2000 and will be @ 4 ohms for 600-700 rms can some one help me figure out how to determine the port area per foot for this speaker ? ive heard 9-20 is good but i dont want to fuck it up is there a way to figure it out using these numbers ? and how much airspace it really needs ? i have 18''x30''x30'' to work with and i would like a 28 hz tune and im trying to do this with the sub and port facing the side using the torres box calculator is confusing the hell out of me and ive read its not completely reliable so if anyone wants to help me design this box that would be great 1997 zj jeep
arrhythmia jeep Posted September 9, 2013 Author Report Posted September 9, 2013 or some help figuring out how many aero ports i need would be cool not sure if ( 2 ) or ( 3 ) os necessary 1997 zj jeep
bkolfo4 Posted September 9, 2013 Report Posted September 9, 2013 40-45 sqin is enough for a slot port, or you can use 2 4" aeros. Current system: 1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s Previous systems: 2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz. 1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.
arrhythmia jeep Posted September 9, 2013 Author Report Posted September 9, 2013 40-45 sqin is enough for a slot port, or you can use 2 4" aeros. cool , thanks 1997 zj jeep
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