Beyma 8WR250

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.3dB
• Frequency response 65 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 62Hz
• Mechanical quality factor QMS 2.40
• Electrical quality factor QES 0.26
• Total quality factor QTS 0.24

Large signal parameters

• Maximum linear excursion xmax 6mm
• Maximum excursion before damage xlim 16mm
• Air volume displaced at xmax VD 132cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.9Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 50.8mm
• Winding height HVC 15mm

Magnet

• Force factor Bl 15.1N/A
• Motor constant Bl/√RE 6.22N/√W
• Air gap height HAG 8mm
• Material Ferrite

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 26g
• Moving mass (without air load) MMD 23.7g

Suspensions

• Stiffness KMS 3.98N/mm
• Compliance CMS 251µm/N
• Equivalent volume to the compliance VAS 17.7L
• Mechanical resistance RMS 4.2N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall depth 95mm
• Volume occupied by the driver (estimated) 0.86L
• Net weight 3.3kg