More bass. More power. Greater flexibility.Get powerful, punchy bass in your car – from the pedigree of world record-breaking subs. The TS-W309D4 sub features a combined IMPP cone, which makes the body ultra-rigid, yet lightweight, giving you low distortion and powerful bass at high sound press levels.Greater flexibility is possible, too. With a 4Ω dual voice coil, you can opt for a 2Ω or 8Ω set-up (provided that there is correct power matching between the sub and your amp).Wiring and installation is made easier with one-sided terminals.The TS-W309D4 is recommended for enclosed use and is also available as a single voice coil model or as a a dual coil model for both enclosed and free-air use. FeaturesMaximum input power1.400 WNominal input power400 WImpedance2Ω / 8ΩFrequency response20 - 220 HzLowest resonance frequency37 HzSensitivity (1W/1m)94 dBWoofer size30 cmWoofer materialIMPP Composite Seamless Cone Voice Coil typeDualDual 4Ω voice coils: 2 or 8ΩYesVoice Coil bobbin typeAluminum, diam.2 inch (48mm) Pole Yoke TypeExtended and Vented pole yokeMagnetsDouble-stacked, high powerTerminalsPush-typeRecommended sealed enclosure24,1 - 49,5 litresCut-out Hole283 mm mmMounting Depth153,1 mm mmSurroundDual Layer, Fiber Reinforced Elastic Polymer Surround Thiele/Small ParametersNom. Dia.(In)12Qts0.81 Fs [Hz] 37.2Vas [l]33.79Vas [ft3]1.19Xmax [mm]11.5
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