Description
- Ferrite 18 inch woofer provides 600Wrms power handling (AES Standard) and 97dB sensitivity
- 4" high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
- FlexirolTM surround for greater excursion control
- Low frequency response, down to 30Hz
- Smart chassis design minimises acoustic distortion
- Specially treated weather-resistant cone
General Specifications
Nominal diameter: 457mm/18in
Power rating: 600Wrms
Continuous power rating: 1200W
EIA power rating: 800W
Nominal impedance: 8Ω
Sensitivity: 97dB
Frequency range: 30-3,000Hz
Voice coil diameter: 100mm/4in
Chassis type: Cast Aluminium
Magnet type: Ferrite
Magnet weight: 3.1kg/110oz
Coil material: Round copper
Former material: Glass fibre
Cone material: Glass loaded paper with weather-resistant impregnation
Surround material: Cloth-sealed
Suspension: Single
Xmax: 6mm/0.24in
Gap depth: 10mm/0.39in
Voice coil winding width: 22mm/0.87in
Small Signal Parameters
D: 0.38m/14.96in
Fs: 32Hz
Mms: 155.6g/5.49oz
Qms: 4.334
Qes: 0.335
Mmd: 136.61g/4.82oz
Qts: 0.311
Re: 5.32Ω
Vas; 281.31lt/9.93ft3
BI: 22.48Tm
Cms: 0.15mm/N
Rms: 7.34kg/s
Le (at 1kHz): 1.25mH
Mounting Information
Overall diameter: 452mm/17.8in
Overall depth: 205mm/8.07in
Cut-out diameter: 416mm/16.38in
Mounting slot dimensions: 10mm x 7mm/0.39in x 0.27in
Number of mounting slots: 8
Mounting PCD range: 429-440mm/16.89-17.32in
Unit weight: 9.7kg/21.4lb