Kartesian Sub265_vKi-S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.2dB
• Frequency response 25 - 500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 22Hz
• Mechanical quality factor QMS 7.60
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.46

Large signal parameters

• Maximum linear excursion xmax 16mm
• Air volume displaced at xmax VD 554cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.32mH
• VC Diameter 78.5mm
• Winding material Cu ribbon wire
• Former material Vented Titanium / Glass fiber

Magnet

• Force factor Bl 9.08N/A
• Motor constant Bl/√RE 4.92N/√W
• Material NdFeB (grade N40H)

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 86g
• Moving mass (without air load) MMD 81.2g
• Material 4 layers vented paper, large concave CGF dust cap

Suspensions

• Stiffness KMS 1.64N/mm
• Compliance CMS 609µm/N
• Equivalent volume to the compliance VAS 103L
• Mechanical resistance RMS 1.56N·s/m
• Surround material Low lost NBR
• Spider material progressiF + pumaX

Dimensions

• Nominal diameter 10″
• 265mm
• Overall diameter 269mm
• Baffle cutout diameter 240mm
• Overall depth 132mm
• Flange thickness 5mm
• Mounting depth 127mm
• Volume occupied by the driver (estimated) 2L
• Net weight 4.92kg
• Frame material Injected aluminium (ACD12)