HELIX K 10S

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.2dB

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 6.37
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 212cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.3Ω
• Inductance (1kHz, in series, estimated) LE 1.69mH
• VC Diameter 50.8mm
• Winding height HVC 19mm

Magnet

• Force factor (in series) Bl 12.7N/A
• Motor constant Bl/√RE 6.99N/√W

Diaphragm

• Effective diameter 212mm
• Effective area SD 353cm²
• Moving mass MMS 112g
• Moving mass (without air load) MMD 107g

Suspensions

• Stiffness KMS 5.05N/mm
• Compliance CMS 198µm/N
• Equivalent volume to the compliance VAS 34L
• Mechanical resistance RMS 3.73N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 262mm
• Baffle cutout diameter 229mm
• Mounting depth 85mm
• Volume occupied by the driver (estimated) 1.6L