- 4-inch, fiberglass inside/outside copper voice coil
- 3000W continuous program power handling
- 96.5 dB Sensitivity
- 30 Hz – 1.5 kHz Frequency range
- Dual Forced Hyperventing System
- Dual spider design with silicon based dampening control
- Triple-roll surround and corrugated straight cone geometry
Very linear frequency response characteristics, extreme high power handling while generating the lowest harmonic distortion of any comparable 18-inch transducer within its application range. The LF15X401 uses a fibre loaded cone assembly along with a high excursion triple roll surround. This combination provides remarkable strength and a peak to peak maximum excursion of 50 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.
- General specifications
- Nominal Diameter: 15 inch / 381 mm
- Rated Impedance: 8 ohm
- Program Power: 3000 W
- Power handling capacity: 1500 W
- Sensitivity: 96.5 dB
- Frequency range: 30 – 1500 Hz
- Effective piston diameter: 340 mm / 13.39 inch
- Max. Excursion Before Damage: 50 mm / 1.97 inch
- Minimim Impedance: 6.5 ohm
- Voice Coil Diameter: 4.0 inch / 102 mm
- Voice Coil Winding Material: Copper
- Voice Coil Length: 30 mm / 1.18 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: Ceramic
- Dual-force air ventilation: Yes
- Spider: Dual with silicon based damping control
- Thiele – small parameters
- Resonance frequency (Fs): 34 Hz
- DC resistance (Re): 5.50 ohm
- Mechanical factor: 7.60 Qms
- Electrical factor (Qes): 0.30 Qes
- Total factor: 0.29 Qts
- BL factor (BL): 26.50 T x m
- Effective moving mass (Mms): 170.0 g
- Equivalent Cas air loaded (Vas): 146.0 liters
- Effettive piston area (Sd): 0.090 m2
- Max. linear excursion (Xmax): 12.0 mm
- Voice coil inductance @ 1kHz (Le1k): 1.30 mH
- Half-space efficency (Eff): 1.90%
- Mounting Information
- Overall diameter: 393 mm / 15.47 inches
- Bolt circle diameter: 371-376 mm / 14.61-14.8 inch
- Bolt hole diameter: 7 mm / 0.28 inch
- Front mount baffle cut-out: 354 mm / 13.94 inch
- Rear mount baffle cut-out: 354 mm / 13.94 inch
- Volume occupied by the driver: 4.3 liters / 0.17 ft3
- Standard compliance
- CE marking: Yes
- Size
- Weight: 12 kg / 26.46 lbs
- Height: 161 mm / 6.34 inches
- Diameter: 393 mm / 15.47 inches
- Shipping informations
- Package Width: 439 mm / 17.28 inches
- Package Weight: 13.5 kg / 29.76 lbs
- Package Height: 209 mm / 8.23 inches
- Package Depth: 434 mm / 17.09 inches
