BMS 5C150

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.1dB
• Frequency response 80 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 99.4Hz
• Mechanical quality factor QMS 3.80
• Electrical quality factor QES 0.48
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 38cm³
• Power handling P 130W
• Program power Pmax 260W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 11.9Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 38mm
• Winding height HVC 15mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1.6T
• Force factor Bl 11.4N/A
• Motor constant Bl/√RE 3.3N/√W
• Air gap height HAG 5mm
• Material Neodymium

Diaphragm

• Effective diameter 98mm
• Effective area SD 75cm²
• Moving mass MMS 8g
• Moving mass (without air load) MMD 7.5g
• Material Polyester

Suspensions

• Stiffness KMS 3.33N/mm
• Compliance CMS 300µm/N
• Equivalent volume to the compliance VAS 2.4L
• Mechanical resistance RMS 1.31N·s/m

Dimensions

• Nominal diameter 5″
• 128 x 128mm
• Overall size 128 x 128mm
• Baffle cutout diameter 117mm
• Overall depth 102mm
• Volume occupied by the driver (estimated) 0.58L
• Net weight 1.9kg
• Frame material Cast Aluminum