The L15P400 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 52mm. The T-pole also features RCF Precision's spaced gap demodulation technology, progressively braking the voice coil, providing a much smoother transition for the moving mass as it reachees its maximum excursion limits.Forced air venting system.
• 4-inch, fiberglass inside/outside copper voice coil
• 1600W continuous program power handling
• 97 dB Sensitivity
• 30 Hz 1.5 kHz Frequency range
• Aluminum demodulation ring
• Forced air ventilation and 14mm top plate for minimum power compression
• Dual spider design with silicon based dampening control
• Triple-roll surround and corrugated straight cone geometry
General specifications
Cone Design: Straight
Dual-force air ventilation: Yes
Effective piston diameter: 340 mm / 13.39 inch
Frequency range: 30 - 1500 Hz
Kind of layers: inside/outside
Magnets: Ceramic
Max. Excursion Before Damage: 50 mm / 1.97 inch
Minimim Impedance: 6 ohm
Nominal Diameter: 15 inch / 381 mm
Number of layers: 2
Power handling capacity: 800 W
Program Power: 1600 W
Rated Impedance: 8 ohm
Sensitivity: 97 dB
Spider: Dual with silicon based damping control
Surround Design: Triple roll
Surround Material: Polycotton
Top Plate Thickness: 14 mm / 0.55 inch
Voice Coil Diameter: 4.0 inch / 102 mm
Voice Coil Material: Copper
Voice Coil Winding Material: 23 mm / 0.91 inch
Mounting Information
Bolt circle diameter: 371-376 mm / 14.61-14.8 inch
Bolt hole diameter: 7 mm / 0.28 inch
Front mount baffle cut-out: 352 mm / 13.86 inch
Overall diameter: 393 mm / 15.47 inches
Rear mount baffle cut-out: 360 mm / 14.17 inch
Volume occupied by the driver: 4.3 liters / 0.17 ft3
Size
Diameter: 393 mm / 15.47 inches
Height: 159 mm / 6.26 inches
Weight: 13.5 kg / 29.76 lbs
Standard compliance
CE marking: Yes
Thiele - small parameters
BL factor (BL): 24.80 T x m
DC resistance (Re): 4.80 ohm
Effective moving mass (Mms): 150 gr
Effettive piston area (Sd): 0.09 m2
Electrical factor (Qes): 0.27 Qes
Equivalent Cas air loaded (Vas): 160 liters
Half-space efficency (Eff): 2.60%
Max. linear excursion (Xmax): 8 mm
Mechanical factor: 7.50 Qms
Resonance frequency (Fs): 36 Hz
Total factor: 0.25 Qts
Voice coil inductance @ 1kHz (Le1k): 1.20 mH
California Prop 65 -
WARNING: Cancer and Reproductive Harm -
www.P65Warnings.ca.gov