18-inch, cast aluminium chassis, ferrite magnet LF loudspeaker
Features
- 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
- Nominal diameter : 457mm / 18in
- Power rating : 1200W
- Continuous power rating : 2400W
- Rated impedance : 8?
- Sensitivity : 97dB
- Frequency range : 35-1000Hz
- Chassis type : Cast aluminium
- Magnet type : Ferrite
- Voice coil diameter : 100mm / 4in
- Voice coil material : Round copper
- Former material : Glass fibre
- Cone material : Glass loaded cellulose, 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 : 5.1O
- Vas : 188.9l / 6.67ft3
- BI : 24.38Tm
- Cms : 0.091mm/N
- Le (at 1kHz) : 1.61mH
- Xmax : 9.3mm / 0.37in
- Xmech : 48mm / 1.9in
- Efficiency ?0 : 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
- Power rating : Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.
- Continuous power rating : Defined as 3dB greater than the AES rating.
- Sensitivity : Measured on axis at 1W, 1m in 2p anechoic environment.
- Parameters : Measured after unit subjected to pre-conditioning signal.
- Xmax : 0.5(Hvc-Hg) + 0.25Hg
- Xmech : Maximum peak-to-peak excursion before damage.
| Condition | Mint (Used) Mint items are in essentially new original condition but have been opened or played.Learn more |
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