CELESTION TSQ1845 T6398 18 1800W 4.5 8

This item is brand-new, factory sealed.

* Continuous power rating: 3600W * Sensitivity: 96.5dB * Voice coil diameter: 4.5-in * Nominal diameter: 457mm / 18-in * Power rating: 1800W * Continuous power rating: 3600W * Rated impedance: 4-ohms, 8-ohms * Sensitivity: 96.5dB * Frequency range: 30-1,000Hz * Chassis type: Cast aluminium * Magnet type: Neodymium * Voice coil diameter: 115mm / 4.5-in * Voice coil material: Round copper * Former material: Glass Fibre * Cone material: Glass loaded cellulose, water-resistant coating front & back * Surround material: Triple roll, cloth sealed * Suspension: Dual, polysiloxane-laminated * Gap height (Hg): 12mm / 0.46-in * VC winding height (Hvc): 36mm / 1.42-in Parameters * Sd: 1134cm squared / 175.8-in squared * Fs: 35Hz * Mms: 316g / 11.18oz * Qms: 8.712 * Qes: 0.300 * Qts: 0.290 * Re: 5.0-ohms * Vas: 119.3l / 4.21ft cubed * BI: 33.8Tm * Cms: 0.065mm/N * Rms: 7.99kg/s * Le (at 1kHz): 3.06mH * Xmax: 15mm / 0.59-in * Xmech: 40mm / 1.57-in * Efficiency η 0 : 1.8% Mounting Information * Overall diameter: 460mm / 18.1-in * Overall depth: 235mm / 9.5-in * Cut-out diameter: 416mm / 16.29-in * Mounting hole dimensions: 7x11mm / 0.28x0.43-in * Number of mounting holes: 8 * Mounting hole PCD: 432-441mm / 17.04-17.36-in * Flange & gasket thickness: 17mm / 0.67-in * Unit weight: 11.8kg / 26lb Packed Dimensions & Weight * Single pack size W x D x H: 500mm x 500mm x 280mm / 19-in x 19-in x 11-in * Single pack weight: 12.3kg / 27.1lb Frequency response and impedance Force factor (Bl) symmetry Stiffness (K) symmetry Watch * Celestions Ten Squared Low Frequency Pro-Audio Driver Range and Our New UK Robotic Production Line * Ten Squared by Celestion: A New Range of High Performance, Low Frequency Loudspeakers [Each]