RCF CX15N251

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.2dB
• Frequency response 50 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 55Hz
• Mechanical quality factor QMS 8.00
• Electrical quality factor QES 0.37
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 5mm
• Maximum excursion before damage xlim 15mm
• Air volume displaced at xmax VD 450cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 1.2mH
• VC Diameter 63mm
• Winding height HVC 14mm
• Winding material Aluminium
• Former material Glass Fiber

Magnet

• Force factor Bl 18.1N/A
• Motor constant Bl/√RE 7.94N/√W
• Air gap height HAG 8mm

Diaphragm

• Effective diameter 330mm
• Effective area SD 900cm²
• Moving mass MMS 71g
• Moving mass (without air load) MMD 52.6g

Suspensions

• Stiffness KMS 8.07N/mm
• Compliance CMS 124µm/N
• Equivalent volume to the compliance VAS 136L
• Mechanical resistance RMS 3.07N·s/m

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 388mm
• Baffle cutout diameter 358mm
• Overall depth 174mm
• Volume occupied by the driver 2.9L
• Net weight 4.29kg