MONACOR SP-38A/500BS

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.1dB
• Frequency response 37 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 4.37
• Electrical quality factor QES 0.38
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 513cm³
• Power handling P 500W
• Program power Pmax 1500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 1.6mH
• VC Diameter 100mm
• Winding material Kapton

Magnet

• Force factor Bl 18.3N/A
• Motor constant Bl/√RE 7.45N/√W
• Diameter 222mm
• Weight 2.6kg

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 107g
• Moving mass (without air load) MMD 89.7g

Suspensions

• Stiffness KMS 6.25N/mm
• Compliance CMS 160µm/N
• Equivalent volume to the compliance VAS 168L
• Mechanical resistance RMS 5.69N·s/m

Dimensions

• Nominal diameter 15″
• 385mm
• Overall diameter 385mm
• Baffle cutout diameter 355mm
• Overall depth 160mm
• Flange thickness 14mm
• Mounting depth 146mm
• Volume occupied by the driver (estimated) 4.6L
• Net weight 10.38kg