MONACOR SPH-315

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.6dB
• Frequency response 22 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 22Hz
• Mechanical quality factor QMS 2.40
• Electrical quality factor QES 0.26
• Total quality factor QTS 0.24

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 230cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 1.5mH
• VC Diameter 50mm
• Winding material Aluminium

Magnet

• Force factor Bl 13.4N/A
• Motor constant Bl/√RE 5.43N/√W
• Diameter 156mm
• Weight 1.4kg

Diaphragm

• Effective diameter 255mm
• Effective area SD 510cm²
• Moving mass MMS 55g
• Moving mass (without air load) MMD 46.8g

Suspensions

• Stiffness KMS 1.05N/mm
• Compliance CMS 950µm/N
• Equivalent volume to the compliance VAS 330L
• Mechanical resistance RMS 3.17N·s/m

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 305mm
• Baffle cutout diameter 278mm
• Overall depth 136mm
• Flange thickness 10mm
• Mounting depth 126mm
• Volume occupied by the driver (estimated) 2L
• Net weight 4.2kg