PowerProX18
.18-inch, cast aluminium chassis, ferrite magnet LF loudspeaker
- PowerProX speakers are built for maximum performance and reliability throughout the lifespan of each speaker
- Dynamic airflow venting delivers class-leading heat management with an average 20C lower voice coil temperature
- Polysiloxane laminated dual suspension provides greater stability and improved cone displacement symmetry
- Aluminium demodulation ring reduces harmonic and intermodulation distortion caused by voice coil displacement
- Double-sided, weatherproof cone coating for moisture protection and enhanced durability
Specification
Nominal diameter
457mm / 18in
Power rating
1200W
Continuous power rating
2400W
Rated impedance
8Ω
Sensitivity
97dB
Frequency range
35-1000Hz
Chassis type
Cast aluminium
Magnet type
Ferrite
Magnet type
3.5kg / 124oz
Voice coil diameter
100mm / 4in
Voice coil material
Round copper
Former material
Glass fibre
Cone material
Glass loaded cellulose
water-resistant coating front & back
water-resistant coating front & back
Surround material
Cloth-sealed
Suspension
Dual-laminated
Gap height (Hg)
11.75mm / 0.46in
VC winding height (Hvc)
25mm / 0.98in
Parameters
Sd
1210.0cm2 / 187.6in2
Fs
34.8Hz
Mms
229.98g / 8.1oz
Qms
3.147
Qes
0.431
Qts
0.379
Re
5.1Ω
Vas
188.9l / 6.67ft3
BI
24.38Tm
Cms
0.091mm/N
Rms
15.96kg/s
Le (at 1kHz)
1.61mH
Xmax
9.5mm / 0.37in
Xmech
48mm / 1.9in
Efficiency η0
1.8%
Mounting Information
Overall diameter
460mm / 18.1in
Overall depth
225mm / 8.9in
Cut-out diameter
414mm / 16.29in
Mounting hole dimensions
11x7mm / 0.43x0.28in
Number of mounting holes
8
Mounting hole PCD
441-432mm / 17.36-17.31in
Flange & gasket thickness
16.2mm / 0.64in
Unit weight
13.2kg / 29.1lb