PowerBass XL-1040SS

2x4Ω

Subwoofer

Nominal diameter10″ / 254 mm
Resonance28.7 Hz
Q factor0.44
Sensitivity89.6 dB
Linear excursion± 7.9 mm
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 89.6dB
  • Frequency response 45 - 500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28.7Hz
  • Mechanical quality factor QMS 6.60
  • Electrical quality factor QES 0.44
  • Total quality factor QTS 0.44

Large signal parameters

  • Maximum linear excursion (one way) xmax 7.9mm
  • Air volume displaced at xmax VD 287cm³
  • Power handling P 200W
  • Program power Pmax 400W
  • Peak power Ppeak 400W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.4Ω
  • Inductance (1kHz, estimated) LE 2.01mH
  • VC Diameter 50.8mm
  • Former material Kapton

Magnet

  • Force factor Bl 14N/A
  • Motor constant Bl/√RE 7.6N/√W
  • Weight 1.392kg

Diaphragm

  • Effective diameter 206mm
  • Effective area SD 363cm²
  • Moving mass (including air load) MMS 140g
  • Moving mass MMD 77.6g
  • Material Polypropylene

Suspensions

  • Stiffness KMS 7.41N/mm
  • Compliance CMS 219µm/N
  • Equivalent volume to the compliance VAS 40.8L
  • Mechanical resistance RMS 4.66N·s/m
  • Surround material TPO Thermoplastic Polyurethane
  • Spider material Treated textile

Dimensions

  • Nominal diameter 10
  • 254mm
  • Baffle cutout diameter 237mm
  • Mounting depth 137mm
  • Volume occupied by the driver (estimated) 1.5L
  • Frame material Composite Polycarbonate / Glass Fiber

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