Scan-Speak 11M/4631G05

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.9dB
• Frequency response 85 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 68Hz
• Mechanical quality factor QMS 4.54
• Electrical quality factor QES 0.33
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 3mm
• Maximum excursion before damage xlim 7mm
• Air volume displaced at xmax VD 15cm³
• Power handling P 40W
• Program power Pmax 70W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz, estimated) LE 0.27mH
• VC Diameter 38mm
• Winding height HVC 10mm

Magnet

• Force factor Bl 5.5N/A
• Motor constant Bl/√RE 3.03N/√W
• Air gap height HAG 4mm
• Material Neodymium

Diaphragm

• Effective diameter 80mm
• Effective area SD 50cm²
• Moving mass MMS 7.1g
• Moving mass (without air load) MMD 6.8g
• Material Sliced Paper

Suspensions

• Stiffness KMS 1.3N/mm
• Compliance CMS 770µm/N
• Equivalent volume to the compliance VAS 2.7L
• Mechanical resistance RMS 0.67N·s/m

Dimensions

• Nominal diameter 4.5″
• 110mm
• Volume occupied by the driver 0.08L
• Net weight 0.6kg
• Frame material Aluminium