Sundown Audio E-Series v.4 15" Subwoofer

RMS 500 watts Dual 2 or 4 ohm voice coils Optimized for ported enclosures Class-leading 14mm Xmax Double-stacked magnet Vented magnetic gap & pole piece for superior cooling High strength stamped steel frame High temp 4-layer copper voice coil wire High-quality push terminals Stitched-on Mini-XL tinsel leads Typical entry-level woofers are highly limited in terms of linear excursion, mechanical ruggedness, and thermal performance. Through relentless research in their North Carolina Headquarters, Sundown optimized a 2.5” voice coil and a truly unique motor design to get the deepest possible bass response out of a 15” subwoofer. The subwoofer showcases a distinctive motor design, featuring a heavily vented magnetic gap and solid pole piece, enabling exceptional thermal power handling. The spider itself is a high strength poly-cotton blend designed to handle the full capacity of the motor. To provide an additional level of ruggedness the spider is bolted down and glued to the frame. Its motor geometry allows for a remarkable 14mm one-way linear Xmax, delivering excursion equivalent to far larger cones. Specifications T/S Specs E v.4 15" D2 E v.4 15" D4 RE (Ohms) 4.030 6.130 FS (Hz) 30.535 30.539 VAS (L) 101.063 103.031 Qes 0.759 0.818 Qms 4.101 3.750 Qts 0.641 0.671 BL (NA) 15.880 19.247 Mms (Grams) 262.699 257.621 Cms (mm/N) 103.416 105.429 Sens (dB @ 1w/1m) 87.7 87.4 Xmax 14mm 14mm Enclosure Specs Ported Enclosure Size: 3.0 cuft net Port Area: 44 sqin Port Tuning: 35hz Sealed Enclosure Not Recommended Displacement: 0.14 cu. ft. Depth: 7.25" Outside Diameter: 15.125" Cutout: 13.875" Physical Dimensions