VIBE Audio BlackDeath BD15D4-V4

2x2Ω
2x4Ω

Subwoofer

Nominal diameter15″ / 392 mm
Resonance30.1 Hz
Q factor0.79
Sensitivity83.8 dB
Linear excursion± 16 mm
Program Power3200 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 83.8dB
  • Frequency response 20 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 30.1Hz
  • Mechanical quality factor QMS 4.61
  • Electrical quality factor QES 0.95
  • Total quality factor QTS 0.79

Large signal parameters

  • Maximum linear excursion (one way) xmax 16mm
  • Maximum excursion before damage xlim 24mm
  • Air volume displaced at xmax VD 1208cm³
  • Power handling P 1600W
  • Program power Pmax 3200W
  • Peak power Ppeak 4800W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.4Ω
  • Inductance (1kHz, in series) LE 4.6mH
  • VC Diameter 76.2mm
  • Winding height HVC 45mm

Magnet

  • Force factor (in series) Bl 25.4N/A
  • Motor constant Bl/√RE 10.1N/√W
  • Weight 3.74kg

Diaphragm

  • Effective diameter 310mm
  • Effective area SD 755cm²
  • Moving mass MMS 509g
  • Moving mass (without air load) MMD 494g

Suspensions

  • Stiffness KMS 18.3N/mm
  • Compliance CMS 54.7µm/N
  • Equivalent volume to the compliance VAS 44.3L
  • Mechanical resistance RMS 20.9N·s/m

Dimensions

  • Nominal diameter 15
  • 392mm
  • Overall diameter 392mm
  • Baffle cutout diameter 352mm
  • Mounting depth 209mm
  • Volume occupied by the driver (estimated) 4.6L

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