Celestion TF1530 T5429A 15-inch Speaker 400 Watt RMS 4-ohm

Nominal diameter: 381 mm/15inPower rating: 400 W rmsContinuous power rating: 800 WEIA power rating: 550 WNominal impedance: 4ΩSensitivity: 99 dBFrequency range: 40-3,000 HzVoice coil diameter: 75 mm / 3 inChassis type: Pressed steelMagnet type: FerriteMagnet weight: 2.44 kg / 86 ozCoil material: Round copperFormer material: PolyimideCone material: Kevlar loaded paperSurround material: Cloth-sealedSuspension: SingleXmax: 2 mm / 0.08 inGap depth: 8 mm / 0.31 inVoice coil winding width: 12 mm / 0.47 inMounting InformationOverall diameter: 385 mm / 15.16 inOverall depth: 163 mm / 6.42 inCut-out diameter: 352 mm / 13.86 inMounting slot dimensions: 9.2 mm x 6.2 mm / 0.36 in x 0.24 inNumber of mounting slots: 8Mounting PCD range: 369 mm / 14.56 inUnit weight: 6.9kg / 15.2lb