Celestion TSQ2145 4 Ohm 21″ 1800W Subwoofer Loudspeaker

Celestion TSQ2145 4ohm 21″ 1800 Watt Subwoofer Loudspeaker

General Specifications:

• Nominal diameter 21”, 530 mm
• Power rating 1800 W (rms)
• Continuous power rating 3600 W
• Nominal impedance 4Ω
• Sensitivity 97 dB
• Frequency range 30-1000 Hz
• Voice coil diameter 4.5”, 115 mm
• Chassis type Cast Aluminium
• Magnet type Neodymium
• 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 (H_g) 12mm / 0.46in
• Xmax 15mm / 0.46in
• Gap depth 0.47”, 12 mm
• VC winding height (H_vc)36mm / 1.42in

Mounting Information:

• Overall diameter 541mm / 21.3in
• Overall depth 250mm / 9.84in
• Cut-out diameter 505mm / 19.88in
• Mounting slot dimensions 8.5x10mm / 0.33×0.39in
• Number of mounting slots 8
• Mounting slot 8.5x10mm / 0.33×0.39in
• Mounting hole PCD 525-528mm / 20.61-20.79in
• Flange & gasket thickness 17mm / 0.67in
• Unit weight 13.8kg / 30.4lb

Small Signal Parameters: 

• Sd.1661.9cm² / 257.9in²
• Fs 30Hz
• Mms 435.2g / 15.35oz
• Qms 8.393
• Qes 0.359
• Qts 0.344
• Re 3.2Ω
• Vas 253.8l / 8.96ft³
• BI 33.8Tm
• Cms 0.065mm/N
• Rms 9.77kg/s
• Le (at 1 kHz) 3.91mH
• Xmax 15mm / 0.46in
• Xmech 40mm / 1.57in
• Efficiency 1.9%

Key Features: 

• The Celestion TSQ speakers use a 3 way tuned system to vent and coil the magnet motor that typically operates at 30 degrees cooler than conventional speaker designs.
• The TSQ 2145 uses a triple suspension that is laminated with Polysiloxane that retains stability and enhances cone displacement symmetry.
• Celestion weave the coil lead-out wires suspension to minimise excess motion that in turn reduces fatigue to increase longevity.
• The 2145 cone uses a double-sided weatherproof coating enhances durability

Designed & manufactured in the UK.

Why Choose Lean Business Audio?

50 years of experience of designing, building and supplying Home, Car and Professional Audio.

Huge stocks of leading loudspeakers and audio brands
KEF, Celestion, Eminence, WGS, Montage, BMS Speakers, Faital Pro, Eighteen Sound, Ciare

Low Worldwide shipping rates.
Free Delivery on selected brands with the UK.
Price matching.

For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk