RMS 1000 watts Dual 2 or 4 ohm voice coils Vented magnetic gap Aluminum 2.75” voice coil former for superior heat dissipation Innovative high-velocity vented frame spacer ringLarge aluminum Faraday ring for smooth acoustic response Patented high-strength cast aluminum frame High-temperature voice coil wire Spring-loaded terminals Stitched-on double “XL” tinsel lead wires This 12” SA v.2 is a top-down upgrade. The 2.75” coil punches way above its weight, outperforming most 3” coils without adding weight. The motor also features a large magnet shorting ring (faraday ring) to reduce distortion and deliver smoother response across the entire acoustic spectrum. The motor & coil setup is mated to an extremely robust double-layer spider with fully tied-on & doubled-up “XL” tinsel leads. A competition-grade paper cone and a strong foam surround were used to complete this masterpiece. Specifications T/S SPECS SAV2 12″ D2 SAV2 12″ D4 RE (Ohms) 3.91 6.35 FS (Hz) 38.8866 33.6039 VAS (L) 26.2867 28.0603 Qes 0.5070 0.4996 Qms 4.5133 4.0178 Qts 0.4558 0.4443 Le (mH) 3.1785 4.6357 BL (NA) 21.9903 29.3900 Mms (Grams) 256.5545 321.8425 Cms (uM/N) 65.2922 69.6976 Sens (dB @ 1w/1m) 86.59 85.03 Enclosure Specifications Sealed Enclosure 1.0 cu ft Ported Enclosure 1.75 cu ft Recommended Tuning 35Hz Recommended Port Area 26 sq in Displacement Depth 7.35" Outside Diameter 12.83″ Cut-Out 11.01″ Physical Dimensions Download Enclosure Designs .Zip File