MONACOR SPH-380TC

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.8dB
• Frequency response 21 - 800Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 21.5Hz
• Mechanical quality factor QMS 2.81
• Electrical quality factor QES 0.31
• Total quality factor QTS 0.28

Large signal parameters

• Maximum linear excursion xmax 11.1mm
• Air volume displaced at xmax VD 938cm³
• Power handling P 500W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 7.2Ω
• Inductance (1kHz, in series) LE 4.4mH
• VC Diameter 75.5mm
• Winding material Aluminium

Magnet

• Force factor (in series) Bl 25N/A
• Motor constant Bl/√RE 9.32N/√W
• Diameter 180mm
• Weight 3.7kg

Diaphragm

• Effective diameter 328mm
• Effective area SD 845cm²
• Moving mass MMS 200g
• Moving mass (without air load) MMD 182g

Suspensions

• Stiffness KMS 3.57N/mm
• Compliance CMS 280µm/N
• Equivalent volume to the compliance VAS 275L
• Mechanical resistance RMS 9.59N·s/m

Dimensions

• Nominal diameter 15″
• 402mm
• Overall diameter 402mm
• Baffle cutout diameter 356mm
• Overall depth 180mm
• Flange thickness 15mm
• Mounting depth 165mm
• Volume occupied by the driver (estimated) 5.2L
• Net weight 10.62kg