Hertz Mille ML 1650.3 LEGEND

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89dB
• Frequency response 40 - 7000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 65Hz
• Mechanical quality factor QMS 5.30
• Electrical quality factor QES 0.52
• Total quality factor QTS 0.52

Large signal parameters

• Maximum linear excursion xmax 5mm
• Maximum excursion before damage xlim 9mm
• Air volume displaced at xmax VD 70cm³
• Power handling P 125W
• Program power Pmax 250W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 0.24mH
• VC Diameter 36mm

Magnet

• Force factor Bl 7N/A
• Motor constant Bl/√RE 3.85N/√W
• Diameter 80mm
• Height 5mm
• Material Neodymium

Diaphragm

• Effective diameter 132mm
• Effective area SD 140cm²
• Moving mass MMS 17.5g
• Moving mass (without air load) MMD 16.3g
• Material Pressed-pulp cone with cotton fibres

Suspensions

• Stiffness KMS 3.33N/mm
• Compliance CMS 300µm/N
• Equivalent volume to the compliance VAS 8.3L
• Mechanical resistance RMS 1.35N·s/m

Dimensions

• Nominal diameter 6.5″
• 165mm
• Overall diameter 165mm
• Baffle cutout diameter 141mm
• Overall depth 80mm
• Flange thickness 11mm
• Mounting depth 69mm
• Volume occupied by the driver (estimated) 0.45L
• Net weight 1.29kg