Rockford Fosgate T1D415 Power 15" T1 4-Ohm DVC Subwoofer

The Power Series T1D415 Dual 4-Ohm subwoofer builds on innovative new Rockford Fosgate technologies. These bad boys have patented VAST technology that increases surface cone area up to 25%. The new FlexFit basket not only looks the part but it provides extreme flexibility for extreme installations. Clean, high tech and ready to set off car alarms, the T1D415 is here! Symmetrical dual progressive roll tear resistant poly-cotton spiders Periodic-stitched fatigue resistant tinsel lead wire Proprietary 8 AWG insulated allmetal input spring terminal connection High-temp voice coil with spun-laced Nomex® re-inforcement collar Optimized and matched magnetic and complicance geometry Anodized aluminum heat sinking dust cap Kevlar fiber reinforced paper cone Rigid die-cast aluminum basket Optimized pole piece and spider venting Anodized aluminum voice coil former / copper clad aluminum wire. Size15" Nominal ImpedanceDual 4-Ohm Power Handling (Watts RMS)1000 Watts RMS 2000 Watts Max Magnet Weight (oz)229 oz. (6.49 kg) Voice Coil Diameter3.0" (75.5 mm) Mounting Depth8.39 in. (213 mm) Fs (Hz)27 Qts0.51 Qms6.00 Cutout Diameter13.9375 in. (354 mm) Woofer Displacement0.191 cu. ft. (5.4 Liters) Le (mH)3.6 Speaker ConnectorCompression Terminal Shipping Weight54.1 Lbs. (24.53 Kg.) SPL (dB @ 1w/1m)87.5 Qes0.55 Vas (Liters)102.0 Xmax (mm)16.4 Re (Ohms)6.50 Sd (cm2)845 CEA-2031 CompliantCEA-2031 Guidelines Subwoofer TypeStandard Voice Coil TypeDual Voice Coil Sealed Box Volume (Vb)2.25 cu. ft. (63.7 Liters) Vented Box Volume (Vb)2.66 cu. ft. (75.3 Liters)