LF18N401 Woofer
Incredibly linear frequency response characteristics,the highest power handling of any comparable 18-inch neodymium transducer, the lowest power compression. The LF18N401 uses a fibre loaded cone assembly along with a high excursion triple roll,constant geometry surround. This combination provides remarkablestrength venting system guarantee a very efficient voice coil ventilation for minimum power compression and higher power handling.
Features
- 4 - inch, fiberglass inside-outside copper voice coil
- 2400 Watt continuous program power handling
- 98 dB Sensitivity
- 30 Hz - 1 kHz Frequency range
- Dual-forced air ventilation and 15mm top plate for minimum power compression
- Dual spider design with silicon based dampening control
- Triple-roll surround and corrugated straight cone geometry
Specifications
General specifications
| Nominal Diameter |
18 inch / 457 mm |
| Rated Impedance |
8 ohm |
| Program Power (watt) |
2400 W |
| Power handling capacity |
1200 W |
| Sensitivity |
98.0 dB |
| Frequency range |
30 - 1000 Hz |
| Effective piston diameter |
395 mm / 15.55 inch |
| Max. Excursion Before Damage |
52 mm / 2.05 inch |
| Minimum Impedance (ohm) |
6.3 ohm |
| Voice Coil Diameter |
4.0 inch / 102 mm |
| Voice Coil Winding Material |
Copper |
| Voice Coil Length |
25 mm / 0.98 inch |
| Number of layers |
2 |
| Kind of layers |
inside/outside |
| Top Plate Thickness |
15 mm / 0.59 inch |
| Cone Design |
Straight |
| Surround Material |
Polycotton |
| Surround Design |
Triple roll |
| Magnets |
Neodymium |
| Dual-force air ventilation |
Yes |
| Spider |
02 |
Thiele - small parameters
| Resonance frequency (Fs) |
32 Hz |
| DC resistance (Re) (ohm) |
5.10 ohm |
| Mechanical factor |
6.50 Qms |
| Electrical factor |
0.27 Qes |
| Total factor |
0.26 Qts |
| Bl factor (Bl) (T x m) |
27.80 T x m |
| Effective moving mass (Mms) |
201.0 g |
| Equivalent Cas air loaded (Vas) |
257.0 liters |
| Effective piston area (Sd) |
0.120 m2 |
| Max. linear excursion (Xmax) |
9 mm |
| Voice coil inductance @ 1kHz (Le1k) |
2.50 mH |
| Half-space efficency (Eff) |
3.01% |
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 |
424 mm / 16.69 inch |
| Volume occupied by the driver |
5.5 liters / 0.22 ft3 |
Standard compliance
| Safety agency |
CE compliant |
Size / Weight
| Height |
204 mm / 8.03 inches |
| Diameter |
465 mm / 18.31 inches |
| Weight |
9.5 kg / 20.94 lbs |
Shipping information
| Package Height |
260 mm / 10.24 inches |
| Package Width |
520 mm / 20.47 inches |
| Package Depth |
500 mm / 19.69 inches |
| Package Weight |
11.4 kg / 25.13 lbs |
