Kartesian Sub120_vHE

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81.1dB
• Frequency response 45 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 46Hz
• Mechanical quality factor QMS 5.40
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 6.5mm
• Air volume displaced at xmax VD 35cm³

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.6Ω
• Inductance (1kHz) LE 0.34mH

Magnet

• Force factor Bl 7.3N/A
• Motor constant Bl/√RE 2.84N/√W
• Diameter 56mm
• Height 39mm

Diaphragm

• Effective diameter 83mm
• Effective area SD 54cm²
• Moving mass MMS 12.6g
• Moving mass (without air load) MMD 12.3g

Suspensions

• Stiffness KMS 1.05N/mm
• Compliance CMS 950µm/N
• Equivalent volume to the compliance VAS 3.93L
• Mechanical resistance RMS 0.67N·s/m

Dimensions

• Nominal diameter 4.5″
• 120mm
• Overall diameter 120mm
• Baffle cutout diameter 98mm
• Overall depth 80mm
• Flange thickness 5mm
• Mounting depth 75mm
• Volume occupied by the driver (estimated) 0.31L