Celestion TSQ2145MD

Celestion TSQ2145MD

21-inch cast aluminium chassis neodymium magnet low frequency loudspeaker

Made in UK

Advanced temperature control using 3-channel tuned venting system provides highly efficient cooling across the frequency band

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: 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 / 0.46in
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
Single pack weight: 14.5kg

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