RCF L15P200 AK-II

Woofer

Nominal diameter15″ / 381 mm
Resonance38 Hz
Q factor0.34
Sensitivity94.5 dB
Linear excursion± 10 mm
Program Power1600 W
Discontinued
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
  • Frequency response 35 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 38Hz
  • Mechanical quality factor QMS 8.10
  • Electrical quality factor QES 0.35
  • Total quality factor QTS 0.34

Large signal parameters

  • Maximum linear excursion xmax 10mm
  • Maximum excursion before damage xlim 18mm
  • Air volume displaced at xmax VD 800cm³
  • Power handling P 800W
  • Program power Pmax 1600W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.5Ω
  • Inductance (1kHz) LE 1.5mH
  • VC Diameter 102mm
  • Winding height HVC 24mm
  • Winding material Copper

Magnet

  • Force factor Bl 25.8N/A
  • Motor constant Bl/√RE 10.1N/√W
  • Material Ceramic

Diaphragm

  • Effective diameter 325mm
  • Effective area SD 800cm²
  • Moving mass MMS 134g
  • Moving mass (without air load) MMD 118g

Suspensions

  • Stiffness KMS 6.54N/mm
  • Compliance CMS 153µm/N
  • Equivalent volume to the compliance VAS 139L
  • Mechanical resistance RMS 3.95N·s/m
  • Surround material Polycotton

Dimensions

  • Nominal diameter 15
  • 381mm
  • Overall diameter 387mm
  • Baffle cutout diameter 362mm
  • Overall depth 136mm
  • Flange thickness 9mm
  • Mounting depth 127mm
  • Volume occupied by the driver 3.4L
  • Net weight 11.0kg

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