MONACOR SPH-68X/AD

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.9dB
• Frequency response 60 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 60Hz
• Mechanical quality factor QMS 3.19
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 1mm
• Air volume displaced at xmax VD 8cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.5Ω
• Inductance (1kHz) LE 0.5mH
• VC Diameter 25.5mm
• Winding material Kapton

Magnet

• Force factor Bl 5.7N/A
• Motor constant Bl/√RE 2.24N/√W
• Diameter 100mm
• Weight 0.37kg

Diaphragm

• Effective diameter 101mm
• Effective area SD 80cm²
• Moving mass MMS 6.5g
• Moving mass (without air load) MMD 6g

Suspensions

• Stiffness KMS 0.909N/mm
• Compliance CMS 1100µm/N
• Equivalent volume to the compliance VAS 9.7L
• Mechanical resistance RMS 0.77N·s/m

Dimensions

• Nominal diameter 5″
• 130 x 130mm
• Overall size 130 x 130mm
• Baffle cutout diameter 122mm
• Overall depth 71mm
• Flange thickness 1mm
• Mounting depth 70mm
• Volume occupied by the driver (estimated) 0.32L
• Net weight 1.1kg