MONACOR SPH-6M

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.9dB
• Frequency response 39 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 2.26
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.30

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 51cm³
• Power handling P 60W
• Program power Pmax 120W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 0.82mH
• VC Diameter 37mm
• Winding material Aluminium

Magnet

• Force factor Bl 9.68N/A
• Motor constant Bl/√RE 3.85N/√W
• Diameter 100mm
• Weight 0.63kg

Diaphragm

• Effective diameter 127mm
• Effective area SD 127cm²
• Moving mass MMS 20g
• Moving mass (without air load) MMD 18.9g

Suspensions

• Stiffness KMS 1.28N/mm
• Compliance CMS 780µm/N
• Equivalent volume to the compliance VAS 17.6L
• Mechanical resistance RMS 2.17N·s/m

Dimensions

• Nominal diameter 6.5″
• 180mm
• Overall diameter 180mm
• Baffle cutout diameter 144mm
• Overall depth 92mm
• Flange thickness 5mm
• Mounting depth 87mm
• Volume occupied by the driver (estimated) 0.69L
• Net weight 2.005kg