DS18 SRW10.4

2x4Ω

Shallow Subwoofer

Nominal diameter10″ / 260 mm
Resonance48 Hz
Q factor0.88
Sensitivity85.8 dB
Program Power400 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 85.8dB
  • Frequency response 23 - 250Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 48Hz
  • Mechanical quality factor QMS 7.92
  • Electrical quality factor QES 0.99
  • Total quality factor QTS 0.88

Large signal parameters

  • Power handling P 200W
  • Program power Pmax 400W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.4Ω
  • Inductance (1kHz) LE 1.13mH
  • VC Diameter 50.8mm
  • Winding material SV
  • Former material Aluminum

Magnet

  • Force factor Bl 11.1N/A
  • Motor constant Bl/√RE 6.04N/√W
  • Diameter 140mm
  • Weight 1.276kg
  • Material Ferrite

Diaphragm

  • Effective diameter 216mm
  • Effective area SD 366cm²
  • Moving mass MMS 121g
  • Moving mass (without air load) MMD 116g
  • Material Paper

Suspensions

  • Stiffness KMS 11N/mm
  • Compliance CMS 91µm/N
  • Equivalent volume to the compliance VAS 17L
  • Mechanical resistance RMS 4.59N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 10
  • 260mm
  • Overall diameter 260mm
  • Baffle cutout diameter 232mm
  • Overall depth 92mm
  • Flange thickness 14mm
  • Mounting depth 78mm
  • Volume occupied by the driver 1.86L
  • Frame material Steel
DS18 SRW10.4 Dimensions

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