MONACOR SPH-220HQ

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.3dB
• Frequency response 30 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 30Hz
• Mechanical quality factor QMS 3.06
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.40

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 128cm³
• Power handling P 100W
• Program power Pmax 180W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 37mm
• Winding material Aluminium

Magnet

• Force factor Bl 7.63N/A
• Motor constant Bl/√RE 3.09N/√W
• Diameter 100mm
• Weight 0.55kg

Diaphragm

• Effective diameter 172mm
• Effective area SD 232cm²
• Moving mass MMS 24.7g
• Moving mass (without air load) MMD 22g

Suspensions

• Stiffness KMS 0.943N/mm
• Compliance CMS 1060µm/N
• Equivalent volume to the compliance VAS 80L
• Mechanical resistance RMS 1.52N·s/m

Dimensions

• Nominal diameter 8″
• 222mm
• Overall diameter 222mm
• Baffle cutout diameter 194mm
• Overall depth 94mm
• Flange thickness 6mm
• Mounting depth 88mm
• Volume occupied by the driver (estimated) 0.76L
• Net weight 1.83kg