Celestion TSQ2145 21" cast aluminium chassis neodymium magnet loudspeaker 8 Ohm

Celestion TSQ2145 21" cast aluminium chassis neodymium magnet loudspeaker 8 Ohm

Features

• Advanced temperature control using 3-channel tuned venting system provides highly efficient cooling across the frequency band
• Voice coil typically operates at up to 80°C lower temperature than other leading drivers in this class
• Polysiloxane laminated triple suspension provides much greater stability and improved cone displacement symmetry
• Lead-out wires precision woven into suspension minimises excess motion and reduces fatigue
• Double-sided, weatherproof cone coating enhances durability

Specifications

• Nominal diameter: 530mm / 21in
• Power rating: 1800W
• Continuous power rating: 3600W
• Rated impedance: 4Ω, 8Ω
• Sensitivity: 97dB
• Frequency range: 30-1,000Hz
• Chassis type: Cast aluminium
• Magnet type: Neodymium
• Voice coil diameter: 115mm / 4.5in
• 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: Triple, polysiloxane-laminated
• Gap height (Hg): 12mm / 0.46in
• VC winding height (Hvc): 36mm / 1.42in

Parameters

• Sd: 1661.9cm2 / 257.9in2
• Fs: 30Hz
• Mms: 435.2g / 15.35oz
• Qms: 8.393
• Qes: 0.359
• Qts: 0.344
• Re: 5.0Ω
• Vas: 253.8l / 8.96ft3
• BI: 33.8Tm
• Cms: 0.065mm/N
• Rms: 9.77kg/s
• Le (at 1kHz): 3.91mH
• Xmax: 15mm / 0.59in
• Xmech: 40mm / 1.57in
• Efficiency η0: 1.9%

Mounting Information

• Overall diameter: 541mm / 21.3in
• Overall depth: 250mm / 9.84in
• Cut-out diameter: 505mm / 19.88in
• Mounting hole dimensions: 8.5x10mm / 0.33x0.39in
• Number of mounting holes: 8
• Mounting hole PCD: 525-528mm / 20.61-20.79in
• Flange & gasket thickness: 17mm / 0.67in
• Unit weight: 13.8kg / 30.4lb

Packed Dimensions & Weight

• Single pack size W x D x H: 575mm x 575mm x 280mm / 22.6in x 22.6in x 11in
• Single pack weight: 14.5kg / 32lb

Features

• Power rating: Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.
• Continuous power rating: Defined as 3dB greater than the AES rating.
• Sensitivity: Measured on axis at 1W, 1m in 2π anechoic environment.
• Parameters: Measured after unit subjected to pre-conditioning signal.
• Xmax: 0.5*(Hvc-Hg) + 0.25*Hg
• Xmech: Maximum peak-to-peak excursion before damage.

UPC

• 739894660402