VOLT B2500.1

Woofer

Nominal diameter10″ / 250 mm
Resonance39 Hz
Q factor0.34
Sensitivity87.3 dB
Linear excursion± 5.5 mm
Program Power500 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 87.3dB
  • Frequency response 25 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 39Hz
  • Mechanical quality factor QMS 2.21
  • Electrical quality factor QES 0.41
  • Total quality factor QTS 0.34

Large signal parameters

  • Maximum linear excursion xmax 5.5mm
  • Maximum excursion before damage xlim 12.5mm
  • Air volume displaced at xmax VD 185cm³
  • Power handling P 250W
  • Program power Pmax 500W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.7Ω
  • Inductance (1kHz) LE 0.9mH
  • VC Diameter 75mm
  • Winding material Copper

Magnet

  • Force factor Bl 18.7N/A
  • Motor constant Bl/√RE 7.83N/√W
  • Weight 8.1kg

Diaphragm

  • Effective diameter 207mm
  • Effective area SD 337cm²
  • Moving mass MMS 104g
  • Moving mass (without air load) MMD 99.1g

Suspensions

  • Stiffness KMS 6.25N/mm
  • Compliance CMS 160µm/N
  • Equivalent volume to the compliance VAS 26L
  • Mechanical resistance RMS 11.5N·s/m

Dimensions

  • Nominal diameter 10
  • 250mm
  • Overall diameter 285mm
  • Baffle cutout diameter 245mm
  • Overall depth 121mm
  • Flange thickness 9mm
  • Mounting depth 112mm
  • Volume occupied by the driver 2L
  • Net weight 8.65kg
  • Frame material Painted Diecast Aluminum
VOLT B2500.1 SPL & Impedance
VOLT B2500.1 Dimensions

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