HELIX K 10W

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.3dB

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 4.50
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.39

Large signal parameters

• Maximum linear excursion xmax 8mm
• Air volume displaced at xmax VD 266cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 2 x 2Ω
• DC resistance (in series) RE 3.2Ω
• Inductance (1kHz, in series, estimated) LE 1.43mH
• VC Diameter 50.8mm
• Winding height HVC 24mm

Magnet

• Force factor (in series) Bl 12.3N/A
• Motor constant Bl/√RE 6.88N/√W

Diaphragm

• Effective diameter 206mm
• Effective area SD 333cm²
• Moving mass MMS 91g
• Moving mass (without air load) MMD 86.5g

Suspensions

• Stiffness KMS 4.59N/mm
• Compliance CMS 218µm/N
• Equivalent volume to the compliance VAS 34L
• Mechanical resistance RMS 4.56N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 262mm
• Baffle cutout diameter 232mm
• Mounting depth 126mm
• Volume occupied by the driver (estimated) 1.6L