RCF MB15N401

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.7dB
• Frequency response 40 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 7.70
• Electrical quality factor QES 0.20
• Total quality factor QTS 0.19

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 20mm
• Air volume displaced at xmax VD 540cm³
• Power handling P 850W
• Program power Pmax 1700W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.0Ω
• Inductance (1kHz) LE 1.6mH
• VC Diameter 102mm
• Winding height HVC 18mm
• Winding material Copper

Magnet

• Force factor Bl 26.1N/A
• Motor constant Bl/√RE 11.7N/√W
• Material Neodymium

Diaphragm

• Effective diameter 340mm
• Effective area SD 900cm²
• Moving mass MMS 100g
• Moving mass (without air load) MMD 81.4g

Suspensions

• Stiffness KMS 8.48N/mm
• Compliance CMS 118µm/N
• Equivalent volume to the compliance VAS 136L
• Mechanical resistance RMS 3.43N·s/m
• Surround material Polycotton

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 161mm
• Flange thickness 12mm
• Mounting depth 149mm
• Volume occupied by the driver 3.8L
• Net weight 7.5kg