Beyma 8CFX260Nd

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.6dB
• Frequency response 100 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 100Hz
• Mechanical quality factor QMS 4.80
• Electrical quality factor QES 0.37
• Total quality factor QTS 0.34

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 20mm
• Air volume displaced at xmax VD 132cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 0.23mH
• VC Diameter 63.5mm
• Winding height HVC 15mm

Magnet

• Force factor Bl 13.5N/A
• Motor constant Bl/√RE 5.92N/√W
• Air gap height HAG 7mm

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 21g
• Moving mass (without air load) MMD 18.6g

Suspensions

• Stiffness KMS 8.4N/mm
• Compliance CMS 119µm/N
• Equivalent volume to the compliance VAS 8L
• Mechanical resistance RMS 2.7N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 212mm
• Baffle cutout diameter 181mm
• Overall depth 134mm
• Volume occupied by the driver (estimated) 1.7L
• Net weight 4.9kg