HELIX COMPOSE CB C130.2-S3

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.9dB
• Frequency response 80 - 22000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 92Hz
• Mechanical quality factor QMS 4.28
• Electrical quality factor QES 1.18
• Total quality factor QTS 0.92

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 24cm³
• Power handling P 70W
• Program power Pmax 105W

Voice Coil

• Nominal impedance Z 3Ω
• DC resistance RE 3.0Ω
• Inductance (1kHz, estimated) LE 0.3mH
• VC Diameter 25mm
• Winding height HVC 8.9mm

Magnet

• Force factor Bl 3.8N/A
• Motor constant Bl/√RE 2.19N/√W

Diaphragm

• Effective diameter 111mm
• Effective area SD 97cm²
• Moving mass MMS 9.7g
• Moving mass (without air load) MMD 9g

Suspensions

• Stiffness KMS 3.3N/mm
• Compliance CMS 303µm/N
• Equivalent volume to the compliance VAS 4L
• Mechanical resistance RMS 1.33N·s/m

Dimensions

• Nominal diameter 5″
• 130mm
• Overall diameter 130mm
• Baffle cutout diameter 118mm
• Mounting depth 51mm
• Volume occupied by the driver (estimated) 0.27L