Beyma 8CX300Nd/N

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.5dB
• Frequency response 60 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 61Hz
• Mechanical quality factor QMS 13.00
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 24mm
• Air volume displaced at xmax VD 132cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 0.3mH
• VC Diameter 63.5mm
• Winding height HVC 15mm

Magnet

• Force factor Bl 12N/A
• Motor constant Bl/√RE 5.16N/√W
• Air gap height HAG 7mm

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 20g
• Moving mass (without air load) MMD 17.6g

Suspensions

• Stiffness KMS 2.99N/mm
• Compliance CMS 335µm/N
• Equivalent volume to the compliance VAS 23L
• Mechanical resistance RMS 0.6N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 212mm
• Baffle cutout diameter 180mm
• Overall depth 106mm
• Volume occupied by the driver (estimated) 1L
• Net weight 2.8kg