HELIX COMPOSE CB C460.2-S3

2 way

Nominal size4x6″ / 100x150 mm
Resonance120 Hz
Q factor0.96
Sensitivity86.9 dB
Linear excursion± 2.5 mm
Program power75 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 86.9dB
  • Frequency response 90 - 22000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 120Hz
  • Mechanical quality factor QMS 6.18
  • Electrical quality factor QES 1.14
  • Total quality factor QTS 0.96

Large signal parameters

  • Maximum linear excursion (one way) xmax 2.5mm
  • Air volume displaced at xmax VD 19cm³
  • Power handling P 50W
  • Program power Pmax 75W

Voice Coil

  • Nominal impedance Z 3Ω
  • DC resistance RE 3.1Ω
  • Inductance (1kHz, estimated) LE 0.29mH
  • VC Diameter 25mm
  • Winding height HVC 8.9mm

Magnet

  • Force factor Bl 4.2N/A
  • Motor constant Bl/√RE 2.39N/√W

Diaphragm

  • Effective diameter 99mm
  • Effective area SD 77cm²
  • Moving mass (including air load) MMS 8.7g
  • Moving mass MMD 8.3g

Suspensions

  • Stiffness KMS 4.9N/mm
  • Compliance CMS 204µm/N
  • Equivalent volume to the compliance VAS 1.7L
  • Mechanical resistance RMS 1.06N·s/m

Dimensions

  • Nominal size 4 x 6
  • 100 x 150mm
  • Overall size 98 x 154mm
  • Mounting baffle cutout 87 x 142mm
  • Mounting depth 49mm
  • Volume occupied by the driver (estimated) 0.13L

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