ETON Symphony II 5-312/C8/25 HEX

Mid Bass

Nominal diameter6″ / 148 mm
Resonance53 Hz
Q factor0.44
Sensitivity85.7 dB
Linear excursion± 7.5 mm
Program Power100 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 85.7dB
  • Frequency response 50 - 4000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 53Hz
  • Mechanical quality factor QMS 7.56
  • Electrical quality factor QES 0.47
  • Total quality factor QTS 0.44

Large signal parameters

  • Maximum linear excursion xmax 7.5mm
  • Air volume displaced at xmax VD 60cm³
  • Power handling P 50W
  • Program power Pmax 100W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.4Ω
  • Inductance (1kHz) LE 0.45mH
  • VC Diameter 25mm
  • Winding material Copper
  • Former material Kapton

Magnet

  • Flux density B 1.15T
  • Force factor Bl 5.7N/A
  • Motor constant Bl/√RE 2.45N/√W
  • Air gap height HAG 6mm
  • Diameter 90mm
  • Height 11mm
  • Material Ferrite

Diaphragm

  • Effective diameter 101mm
  • Effective area SD 80cm²
  • Moving mass MMS 9.4g
  • Moving mass (without air load) MMD 8.8g

Suspensions

  • Stiffness KMS 1.06N/mm
  • Compliance CMS 940µm/N
  • Equivalent volume to the compliance VAS 8.4L
  • Mechanical resistance RMS 0.45N·s/m

Dimensions

  • Nominal diameter 6
  • 148mm
  • Overall diameter 148mm
  • Baffle cutout diameter 120mm
  • Overall depth 68mm
  • Flange thickness 6mm
  • Mounting depth 62mm
  • Volume occupied by the driver (estimated) 0.38L
  • Net weight 1.28kg
ETON 5-312/C8/25 HEX Impedance
ETON 5-312/C8/25 HEX SPL
ETON 5-312/C8/25 HEX Dimensions

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