Celestion TF1225 12” Low Frequency Driver, 8 Ohm at

Description

Full View Full SpecificationsNominal Diameter: 305mm / 12”Power Rating: 250W RMSSensitivity: 97dBEIA Power Rating: 400WNominal Impedance: 8 OhmsFrequency Range: 50Hz – 4kHzVoice Coil Diameter: 64mm / 2.5”Chassis Type: Pressed steelMagnet Type: FerriteMagnet Weight: 1.2kg / 42oz.Coil Material: Round copperFormer Material: PolyimideCone Material: Kevlar-loaded paperSurround Material: Cloth sealedSuspension: SingleDimensions: 330mm x 330mm x 150mm / 13” x 13” x 5.9”Xmax: 2.5mm / 0.1”Gap Depth: 8mm / 0.31”Voice Coil Winding Width: 13mm / 0.51”Mounting InformationOverall Diameter: 309mm / 12.17”Overall Depth: 130mm / 5.12”Cut-Out Diameter: 283mm / 11.14”Mounting Slot Dimensions: 7.9mm / 0.31” diameterNumber of Mounting Slots: 4Mounting PCD Range: 297mm / 11.69”Weight: 4.1kg / 9lbsSmall Signal ParametersResonant Frequency – Fs: 55.6HzDiaphragm Mass inc. Airload – Mms: 48.52g / 1.71oz.Mechanical Q – Qms: 3.112Electromagnetic Q – Qes: 0.42Moving Mass of Diaphragm – Mmd: 39.60g / 1.40oz.Total Q – Qts: 0.37DC Resistance – Re: 5.08 OhmsCompliance Equivalent Volume – Vas: 67.27lt / 2.38ft³BL Product – BL: 14.32TmMechanical Compliance of Suspension – Cms: 0.17mm/NVoice Coil Inductance – Le: 0.86mHCelestion TF1225 12” Low Frequency Driver, 8 Ohm at