BMS 15N630

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.8dB
• Frequency response 35 - 2500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 6.74
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 8mm
• Air volume displaced at xmax VD 704cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 0.7mH
• VC Diameter 77mm
• Winding height HVC 26mm
• Winding material Copper

Magnet

• Force factor Bl 19.8N/A
• Motor constant Bl/√RE 8.08N/√W
• Air gap height HAG 10mm
• Material Neodymium

Diaphragm

• Effective diameter 335mm
• Effective area SD 880cm²
• Moving mass MMS 121g
• Moving mass (without air load) MMD 103g

Suspensions

• Stiffness KMS 7.14N/mm
• Compliance CMS 140µm/N
• Equivalent volume to the compliance VAS 152L
• Mechanical resistance RMS 4.4N·s/m

Dimensions

• Nominal diameter 15″
• 388mm
• Overall diameter 388mm
• Baffle cutout diameter 358mm
• Overall depth 182mm
• Volume occupied by the driver (estimated) 2.9L
• Net weight 4.3kg
• Frame material Cast Aluminum