PowerBass XL-1040

2x4Ω

Subwoofer

Nominal diameter10″ / 254 mm
Resonance38.2 Hz
Q factor0.57
Sensitivity85.6 dB
Linear excursion± 8.5 mm
Program power700 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 85.6dB
  • Frequency response 35 - 500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 38.2Hz
  • Mechanical quality factor QMS 4.56
  • Electrical quality factor QES 0.66
  • Total quality factor QTS 0.57

Large signal parameters

  • Maximum linear excursion (one way) xmax 8.5mm
  • Air volume displaced at xmax VD 309cm³
  • Power handling P 350W
  • Program power Pmax 700W
  • Peak power Ppeak 700W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.7Ω
  • Inductance (1kHz, estimated) LE 2.44mH
  • VC Diameter 50.8mm
  • Winding material EIW wire
  • Former material BASV

Magnet

  • Force factor Bl 14.9N/A
  • Motor constant Bl/√RE 7.75N/√W
  • Weight 4.65kg
  • Material Dual stacked

Diaphragm

  • Effective diameter 215mm
  • Effective area SD 363cm²
  • Moving mass (including air load) MMS 164g
  • Moving mass MMD 138g
  • Material 4-layer, Non-pressed Paper, DDC Finish

Suspensions

  • Stiffness KMS 7.05N/mm
  • Compliance CMS 106µm/N
  • Equivalent volume to the compliance VAS 19.8L
  • Mechanical resistance RMS 8.58N·s/m
  • Surround material Santoprene

Dimensions

  • Nominal diameter 10
  • 254mm
  • Baffle cutout diameter 237mm
  • Mounting depth 133mm
  • Volume occupied by the driver (estimated) 1.5L
  • Frame material Composite Polycarbonate

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