Celestion TSQ2145 21" Neo Subwoofer 1800 watt 8ohm

3600W continuous power rating
97dB sensitivity
4.5 inch Voice Coil
13.8kg

Deploying Celestion's TSQ technology the TSQ2145 is designed to handle and maintain high performance longevity to cope with high powered amplifiers in the toughest professional audio environments. TRUELY TOUR GRADE..

TSQ is an advanced method of speaker temperature control that uses 3 methods of heat venting,

The 4.5" voice coil typically works at 30C lower than a B&C 21DS115 or similar 21" speaker

The Suspension (spider) is Polysiloxane triple laminated offering higher linearity and cone control

Celestion have meshed the lead out wires into the suspension to minimise excessive movement resulting in less fatigue.

A demodulation ring has be incorporated into the magnet motor concentrating the magnetic flux into the gap reducing harmonic and intermodulation caused by the voice coil displacement resulting in very large Xmech and Xprotection and maximising low frequency excursion.

The TSQ cone has waterproof coating that is applied TWICE to both sides to increase durability in the harshest of climates.

Designed & manufactured in the UK.

Model: TSQ2145

ote: Price includes VAT

General Specifications

Nominal diameter 530mm/21in
Power rating 1800W rms
Nominal impedance 8 ohm
Sensitivity 97dB
Frequency range.30-1000Hz
Voice coil diameter 115mm/4.55in
Chassis type Cast aluminium
Magnet type Neodymium
Coil material Round copper
Former material Glass fibre
Cone material Glass loaded cellulose, water resistant coating front and back
Surround materialTriple Cloth-sealed
Suspension Triple Polysiloxane triple laminated
Xmax3 15mm/0.46in
Gap depth 12mm/0.47in
Voice coil winding width 36mm/1.42in

Small Signal Parameters

Sd 1661.9cm3/257.59in3
Fs 30Hz
Mmd 435.2g/11.26oz
RMS 9.77kg/s
Qms 8.393
Qes 0.359
Qts 0.344
Re 5.0 ohm
Vas 253.81lt/8.96ft3
BI 33.8Tm
Cms 0.065mm/N
Le (at 1kHz) 3.91mH

Xmax 15mm/046in

Xmech 40mm/1.57in

Effciency 1.9%

Mounting Information

Overall diameter 541mm/21.3in
Overall depth 250mm/9.84in
Cut-out diameter 505mm/19.88in
Mounting slot dimensions 8.5mm x 10mm/0.33in x 0.39in
Number of mounting slots 8
Mounting slot PCD range 525-528mm/20.67-20.8in
Unit weight 13.8kg/30,4lb