HELIX COMPOSE Ci3 W130-S3

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.1dB
• Frequency response 80 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 89Hz
• Mechanical quality factor QMS 3.11
• Electrical quality factor QES 0.97
• Total quality factor QTS 0.74

Large signal parameters

• Maximum linear excursion xmax 3.2mm
• Air volume displaced at xmax VD 31cm³
• Power handling P 90W
• Program power Pmax 135W

Voice Coil

• Nominal impedance Z 3Ω
• DC resistance RE 3.1Ω
• Inductance (1kHz, estimated) LE 0.3mH
• VC Diameter 25mm
• Winding height HVC 10.5mm

Magnet

• Force factor Bl 4N/A
• Motor constant Bl/√RE 2.27N/√W

Diaphragm

• Effective diameter 112mm
• Effective area SD 98cm²
• Moving mass MMS 9.1g
• Moving mass (without air load) MMD 8.4g

Suspensions

• Stiffness KMS 2.86N/mm
• Compliance CMS 350µm/N
• Equivalent volume to the compliance VAS 4.6L
• Mechanical resistance RMS 1.65N·s/m

Dimensions

• Nominal diameter 5″
• 130mm
• Overall diameter 130mm
• Baffle cutout diameter 117mm
• Mounting depth 55mm
• Volume occupied by the driver (estimated) 0.27L