SEAS H1152-08 CA12RCY

Woofer

Nominal diameter4.5″ / 120 mm
Resonance57 Hz
Q factor0.31
Sensitivity86.2 dB
Linear excursion± 3 mm
Program Power200 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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 86.2dB
  • Frequency response 45 - 5000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 57Hz
  • Mechanical quality factor QMS 2.17
  • Electrical quality factor QES 0.36
  • Total quality factor QTS 0.31

Large signal parameters

  • Maximum linear excursion xmax 3mm
  • Maximum excursion before damage xlim 4.5mm
  • Air volume displaced at xmax VD 17cm³
  • Power handling P 60W
  • Program power Pmax 200W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.4Ω
  • Inductance (1kHz) LE 1.05mH
  • VC Diameter 26mm
  • Winding height HVC 12mm

Magnet

  • Flux density B 1.15T
  • Force factor Bl 6.35N/A
  • Motor constant Bl/√RE 2.51N/√W
  • Air gap height HAG 6mm
  • Weight 0.42kg

Diaphragm

  • Effective diameter 84mm
  • Effective area SD 55cm²
  • Moving mass MMS 6.1g
  • Moving mass (without air load) MMD 5.8g

Suspensions

  • Stiffness KMS 0.769N/mm
  • Compliance CMS 1300µm/N
  • Equivalent volume to the compliance VAS 5L
  • Mechanical resistance RMS 1.04N·s/m

Dimensions

  • Nominal diameter 4.5
  • 120mm
  • Volume occupied by the driver (estimated) 0.48L
  • Net weight 1.2kg
SEAS H1152-08 CA12RCY SPL & Impedance
SEAS H1152-08 CA12RCY Dimensions

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