Kartesian Sub120_vHP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 81dB
• Frequency response 48 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 46Hz
• Mechanical quality factor QMS 2.52
• Electrical quality factor QES 0.39
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 32cm³

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.8Ω
• Inductance (1kHz) LE 0.76mH

Magnet

• Force factor Bl 8.6N/A
• Motor constant Bl/√RE 3.3N/√W
• Diameter 90mm
• Height 40mm

Diaphragm

• Effective diameter 83mm
• Effective area SD 53.5cm²
• Moving mass MMS 14.5g
• Moving mass (without air load) MMD 14.2g

Suspensions

• Stiffness KMS 1.21N/mm
• Compliance CMS 827µm/N
• Equivalent volume to the compliance VAS 3.38L
• Mechanical resistance RMS 1.66N·s/m

Dimensions

• Nominal diameter 4.5″
• 120mm
• Overall diameter 120mm
• Baffle cutout diameter 98mm
• Overall depth 81mm
• Flange thickness 5mm
• Mounting depth 76mm
• Volume occupied by the driver (estimated) 0.31L