Down4Sound DVX12D4

2x2Ω
2x4Ω

Subwoofer

Nominal diameter12″ / 316 mm
Resonance39 Hz
Q factor0.50
Sensitivity83.4 dB
Linear excursion± 33 mm
Program Power3400 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 83.4dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 39Hz
  • Mechanical quality factor QMS 3.08
  • Electrical quality factor QES 0.60
  • Total quality factor QTS 0.50

Large signal parameters

  • Maximum linear excursion (one way) xmax 33mm
  • Air volume displaced at xmax VD 1431cm³
  • Power handling P 1700W
  • Program power Pmax 3400W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.1Ω
  • Inductance (1kHz, in series, estimated) LE 6.37mH
  • VC Diameter 76.2mm

Magnet

  • Force factor (in series) Bl 28.5N/A
  • Motor constant Bl/√RE 11.6N/√W
  • Diameter 220mm

Diaphragm

  • Effective diameter 235mm
  • Effective area SD 434cm²
  • Moving mass MMS 330g
  • Moving mass (without air load) MMD 323g

Suspensions

  • Stiffness KMS 19.8N/mm
  • Compliance CMS 50.5µm/N
  • Equivalent volume to the compliance VAS 139L
  • Mechanical resistance RMS 26.2N·s/m

Dimensions

  • Nominal diameter 12
  • 316mm
  • Overall diameter 316mm
  • Baffle cutout diameter 283mm
  • Mounting depth 238mm
  • Volume occupied by the driver 4.25L
  • Net weight 27.216kg

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Ground Zero GZHW 25-D1

2 x 1 Ω
10Subwoofer
fS40.3 Hz
SD370 cm²
QTS0.52
xmax22.5 mm
SPL1W83.4 dB
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Down4Sound DVX12D2 Subwoofer

Down4Sound DVX12D2

2 x 2 Ω
12Subwoofer
fS38.4 Hz
SD434 cm²
QTS0.43
xmax33 mm
SPL1W84.8 dB
Bl/√RE13.5
Pmax3400 W