TSQ1845
.18-inch cast aluminium chassis neodymium magnet low frequency loudspeaker
- 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 double 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
Specification
Nominal diameter
457mm / 18in
Power rating
1800W
Continuous power rating
3600W
Rated impedance
8Ω
Sensitivity
98dB
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
Dual, polysiloxane-laminated
Gap height (Hg)
12mm / 0.46in
VC winding height (Hvc)
36mm / 1.42in
Additional impedances
4Ω
Parameters
Sd
1134cm2 / 175.8in2
Fs
35Hz
Mms
316g / 11.18oz
Qms
8.712
Qes
0.300
Qts
0.290
Re
5Ω
Vas
119.3l / 4.21ft3
BI
33.8Tm
Cms
0.065mm/N
Rms
7.99kg/s
Le (at 1kHz)
3.06mH
Xmax
15mm / 0.59in
Xmech
40mm / 1.57in
Efficiency η0
1.8%
Mounting Information
Overall diameter
460mm / 18.1in
Overall depth
235mm / 9.5in
Cut-out diameter
416mm / 16.29in
Mounting hole dimensions
7x11mm / 0.28x0.43in
Number of mounting holes
8
Mounting hole PCD
432-441mm / 17.04-17.36in
Flange & gasket thickness
17mm / 0.67in
Unit weight
11.8kg / 26lb
Packed Dimensions & Weight
Single pack size W x D x H
500mm x 500mm x 280mm / 19in x 19in x 11in
Single pack weight
12.3kg / 27.1lb