PowerBass XL-1040TD

4Ω
2x4Ω

Shallow Subwoofer

Nominal diameter10″ / 254 mm
Resonance37.5 Hz
Q factor0.62
Sensitivity84.1 dB
Linear excursion± 7.5 mm
Program power700 W
PowerBass XL-1040TD Shallow SubwooferPowerBass XL-1040TD Shallow SubwooferPowerBass XL-1040TD Shallow Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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 84.1dB
  • Frequency response 35 - 500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 37.5Hz
  • Mechanical quality factor QMS 4.69
  • Electrical quality factor QES 0.72
  • Total quality factor QTS 0.62

Large signal parameters

  • Maximum linear excursion (one way) xmax 7.5mm
  • Air volume displaced at xmax VD 260cm³
  • Power handling P 350W
  • Program power Pmax 700W
  • Peak power Ppeak 700W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.8Ω
  • Inductance (1kHz, in series, estimated) LE 4.74mH
  • VC Diameter 50.8mm
  • Former material KSV

Magnet

  • Force factor (in series) Bl 20N/A
  • Motor constant Bl/√RE 7.65N/√W
  • Weight 3.29kg

Diaphragm

  • Effective diameter 210mm
  • Effective area SD 346cm²
  • Moving mass (including air load) MMS 178g
  • Moving mass MMD 160g
  • Material Injection Molded Poly

Suspensions

  • Stiffness KMS 7.87N/mm
  • Compliance CMS 101µm/N
  • Equivalent volume to the compliance VAS 17.2L
  • Mechanical resistance RMS 9.87N·s/m
  • Surround material Santoprene

Dimensions

  • Nominal diameter 10″
  • 254mm
  • Baffle cutout diameter 237mm
  • Mounting depth 86mm
  • Volume occupied by the driver (estimated) 1.5L
  • Frame material Cast polycarbonate
Impedance
Step response
Tone Burst
PDF fileDatasheet

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