Product: Sundown Audio SA-15 Rev.3 D4 15" 750 Watts Dual 4-Ohm SA Series Subwoofer
Brand: Sundown Audio
SUNDOWN AUDIO SA-15 REV.3 D4 15" 750 WATTS RMS DVC 4OHM LOUD SUBWOOFER BASS SPEAKER NEW
Specifications: DC Resistance (Re): 7.75 Ω | Resonance Frequency (Fs): 36.95 Hz | Equivalent Volume (Vas): 52.35 L | Electrical Q Factor (Qes): 0.85 | Mechanical Q Factor (Qms): 6.63 | Total Q Factor (Qts): 0.75 | Voice Coil Inductance (Le): 4.98 mH | Force Factor (BL): 25.87 NA | Moving Mass (incl. Air Load) (Mms): 315 g | Suspension Compliance (Cms): 58.8 μm/N | Sensitivity: 86.68 dB 1w / 1m
Box Recommendations: Sealed Enclosure Suggestion: 2.5 cu. ft. | Ported Enclosure Suggestion: 3 - 4 cu. ft. @ 35 Hz | Displacement: 0.17 cu. ft. | Depth: 7.5 in |Outside Diameter: 15.625 in | Cutout: 14.125 in
Thick black anodized aluminum voice coil formers for maximum strength and heat dissipation | 4‐layer copper high temperature voice coil windings with 45mm winding length | Double layer permanently bonded high strength Nomex spider pack for maximum longevity and durability | Thick flat tinsel lead wires tied down to the spider to prevent lead noise and breakage | Custom tooled triple joint support ring
Custom tooled frame spacer / ventilation ring | High efficiency air‐flow management integrated into the motor for maximum voice coil cooling | Dual Aluminum Faraday rings for reduced inductance and inductive distortion (pole cap and magnet ID) | Two‐Year Warranty against defects in materials and workmanship

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