Item Code: TF1525 8 Ohm . Magnet type: Ferrite. Chassis type: Pressed steel. Magnet weight: 1.2kg / 42oz. Surround material: Cloth-sealed. Voice coil material: Round copper. 15in bass and mid-range speaker driver unit providing 98dB sensitivity.
3.75mm / 0.15in. Le (at 1kHz). 64.33l / 2.3ft3. 72.42g / 2.56oz. 530.93cm2 / 82.29in2. 17.5mm / 0.69in. VC winding height (Hvc ).
Nominal diameter305mm / 12inPower rating350WContinuous power rating700WRated impedance8ΩSensitivity97dBFrequency range50-4500HzChassis typePressed steelMagnet typeNeodymiumVoice coil diameter75mm / 3inVoice coil materialRound copperFormer materialPolyimideCone materialKevlar loaded paperSurround materialCloth-sealedSuspensionSingleGap height (Hg)10mm / 0.39inVC winding height (Hvc)17.5mm / 0.69in ParametersSd530.93cm2 / 82.29in2Fs46.6HzMms72.42g / 2.56ozQms4.76Qes0.37Qts0.35Re6.09ΩVas64.33l / 2.3ft3BI18.55TmCms0.16mm/NRms4.45kg/sLe (at 1kHz)0.99mHXmax3.75mm / 0.15in
Nominal diameter305mm / 12inPower rating350WContinuous power rating700WRated impedance8ΩSensitivity97dBFrequency range50-4500HzChassis typePressed steelMagnet typeNeodymiumVoice coil diameter75mm / 3inVoice coil materialRound copperFormer materialPolyimideCone materialKevlar loaded paperSurround materialCloth-sealedSuspensionSingleGap height (Hg)10mm / 0.39inVC winding height (Hvc)17.5mm / 0.69in ParametersSd530.93cm2 / 82.29in2Fs46.6HzMms72.42g / 2.56ozQms4.76Qes0.37Qts0.35Re6.09ΩVas64.33l / 2.3ft3BI18.55TmCms0.16mm/NRms4.45kg/sLe (at 1kHz)0.99mHXmax3.75mm / 0.15in