- 4,5 – inch Inside/Outside copper voice coil
- 3000 Watt continuous program power handling
- 97.5 dB Sensitivity
- 30 Hz – 1 kHz Frequency range
- Dual-forced air ventilation for minimum power compression
- Dual spider designed with silicon based damping control
- BL of 30.2 Txm to provide a faster and accurate low frequency
The LF18N451 is a very high power handling and efficiency transducer specially designed to provide powerful and accurate sub-bass frequencies with low distortion and low power compression. Ultra fast time response. The LF18N451 uses a fibre loaded cone assembly along a large triple roll surround, this combination provides remarkable strength and control. Double silicon spider sysetm ensures excellent control during large excursions. A fully optimazed T-pole design generate the minimum amount of flux modulation. The Dual-forced air venting system provides a very efficient voice coil ventilation to minimize the power compression
- General specifications
- Nominal Diameter: 18 inch / 457 mm
- Rated Impedance: 8 ohm
- Program Power: 3000 W
- Power handling capacity: 1500 W
- Sensitivity: 97.5 dB
- Frequency range: 30 – 1000 Hz
- Effective piston diameter: 395 mm / 15.55 inch
- Max. Excursion Before Damage: 60 mm / 2.36 inch
- Minimim Impedance: 6.3 ohm
- Voice Coil Diameter: 4.5 inch / 114 mm
- Voice Coil Winding Material: Copper
- Voice Coil Length: 26 mm / 1.02 inch
- Number of layers: 2
- Kind of layers: inside/outside
- Top Plate Thickness: 15 mm / 0.59 inch
- Cone Design: Curved
- Surround Material: Polycotton
- Surround Design: Triple roll
- Magnets: Neodymium
- Dual-force air ventilation: Yes
- Spider: Dual with silicon based damping control
- Thiele – small parameters
- Resonance frequency (Fs): 31 Hz
- DC resistance (Re): 5.00 ohm
- Mechanical factor: 6.00 Qms
- Electrical factor (Qes): 0.25 Qes
- Total factor: 0.24 Qts
- BL factor (BL): 30.20 T x m
- Effective moving mass (Mms): 235.0 g
- Equivalent Cas air loaded (Vas): 245.0 liters
- Effettive piston area (Sd): 0.120 m2
- Max. linear excursion (Xmax): 9.0 mm
- Voice coil inductance @ 1kHz (Le1k): 2.60 mH
- Half-space efficency (Eff): 2.54%
- Mounting Information
- Overall diameter: 465 mm / 18.31 inches
- Bolt circle diameter: 442-447 mm / 17.4-17.6 inch
- Bolt hole diameter: 7 mm / 0.28 inch
- Front mount baffle cut-out: 424 mm / 16.69 inch
- Rear mount baffle cut-out: 425 mm / 16.73 inch
- Volume occupied by the driver: 5.5 liters / 0.22 ft3
- Standard compliance
- CE marking: Yes
- Size
- Weight: 10.5 kg / 23.15 lbs
- Height: 223 mm / 8.78 inches
- Diameter: 465 mm / 18.31 inches
- Shipping informations
- Package Width: 510 mm / 20.08 inches
- Package Weight: 12.5 kg / 27.56 lbs
- Package Height: 240 mm / 9.45 inches
- Package Depth: 480 mm / 18.9 inches
