accuton BD90-6-727

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92dB
• Frequency response 200 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 123Hz
• Mechanical quality factor QMS 4.50
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.28

Large signal parameters

• Maximum linear excursion xmax 3mm
• Air volume displaced at xmax VD 22cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.5Ω
• Inductance (1kHz) LE 0.13mH
• VC Diameter 80mm
• Winding material Copper
• Former material Titanium

Magnet

• Force factor Bl 10.7N/A
• Motor constant Bl/√RE 4.56N/√W

Diaphragm

• Effective diameter 97mm
• Effective area SD 73.3cm²
• Moving mass MMS 8g
• Moving mass (without air load) MMD 7.5g
• Material Diamond

Suspensions

• Stiffness KMS 4.76N/mm
• Compliance CMS 210µm/N
• Equivalent volume to the compliance VAS 1.6L
• Mechanical resistance RMS 1.37N·s/m

Dimensions

• Nominal diameter 5″
• 124mm
• Baffle cutout diameter 124mm
• Overall depth 64mm
• Flange thickness 8mm
• Mounting depth 56mm
• Volume occupied by the driver (estimated) 0.32L