RCF MB15N351

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.6dB
• Frequency response 40 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 4.00
• Electrical quality factor QES 0.24
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 19.5mm
• Air volume displaced at xmax VD 540cm³
• Power handling P 650W
• Program power Pmax 1300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 1.65mH
• VC Diameter 89mm
• Winding height HVC 17mm
• Winding material Copper

Magnet

• Force factor Bl 22.5N/A
• Motor constant Bl/√RE 9.51N/√W
• Air gap height HAG 11mm

Diaphragm

• Effective diameter 330mm
• Effective area SD 900cm²
• Moving mass MMS 80g
• Moving mass (without air load) MMD 61.4g

Suspensions

• Stiffness KMS 5.71N/mm
• Compliance CMS 175µm/N
• Equivalent volume to the compliance VAS 191L
• Mechanical resistance RMS 5.28N·s/m
• Spider material with silicon damping

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 180mm
• Volume occupied by the driver 3.8L
• Net weight 5.16kg