ATOHM LD165CR08

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.4dB

Thiele & Small parameters

• Resonance frequency (free air) fS 43Hz
• Mechanical quality factor QMS 11.16
• Electrical quality factor QES 0.47
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Maximum excursion before damage xlim 7mm
• Air volume displaced at xmax VD 66cm³
• Power handling P 90W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.7Ω
• Inductance (1kHz) LE 0.47mH
• VC Diameter 35mm
• Winding height HVC 17mm

Magnet

• Flux density B 1T
• Force factor Bl 9.1N/A
• Motor constant Bl/√RE 3.52N/√W
• Air gap height HAG 6mm

Diaphragm

• Effective diameter 124mm
• Effective area SD 120cm²
• Moving mass MMS 21g
• Moving mass (without air load) MMD 20g

Suspensions

• Stiffness KMS 1.61N/mm
• Compliance CMS 620µm/N
• Equivalent volume to the compliance VAS 14.7L
• Mechanical resistance RMS 0.51N·s/m

Dimensions

• Nominal diameter 6.5″
• 165mm
• Volume occupied by the driver (estimated) 0.5L