Beyma 15P80Fe/N

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.1dB
• Frequency response 30 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 32Hz
• Mechanical quality factor QMS 5.50
• Electrical quality factor QES 0.19
• Total quality factor QTS 0.18

Large signal parameters

• Maximum linear excursion xmax 7.5mm
• Maximum excursion before damage xlim 52mm
• Air volume displaced at xmax VD 660cm³
• Power handling P 800W
• Program power Pmax 1600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 1.2mH
• VC Diameter 101.6mm
• Winding height HVC 20mm

Magnet

• Force factor Bl 22.1N/A
• Motor constant Bl/√RE 9.6N/√W
• Air gap height HAG 12mm

Diaphragm

• Effective diameter 335mm
• Effective area SD 880cm²
• Moving mass MMS 88g
• Moving mass (without air load) MMD 70g

Suspensions

• Stiffness KMS 3.58N/mm
• Compliance CMS 279µm/N
• Equivalent volume to the compliance VAS 305L
• Mechanical resistance RMS 3.2N·s/m

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 388mm
• Baffle cutout diameter 352mm
• Overall depth 164mm
• Volume occupied by the driver (estimated) 5.4L
• Net weight 12.5kg