RAMPAGE12 D1

2x1Ω
2x2Ω

Subwoofer

Nominal diameter12″ / 300 mm
Resonance34.6 Hz
Q factor0.51
Sensitivity82.2 dB
Linear excursion± 40 mm
Program Power8000 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 82.2dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 34.6Hz
  • Mechanical quality factor QMS 7.21
  • Electrical quality factor QES 0.55
  • Total quality factor QTS 0.51

Large signal parameters

  • Maximum linear excursion (one way) xmax 40mm
  • Air volume displaced at xmax VD 1910cm³
  • Power handling P 4000W
  • Program power Pmax 8000W
  • Peak power Ppeak 12000W

Voice Coil

  • Nominal impedance Z 2 x 1Ω
  • DC resistance (in series) RE 2.0Ω
  • Inductance (1kHz, in series, estimated) LE 3.26mH
  • VC Diameter 101.6mm

Magnet

  • Force factor (in series) Bl 22.4N/A
  • Motor constant Bl/√RE 15.8N/√W
  • Diameter 260mm
  • Height 125mm
  • Weight 31.18kg

Diaphragm

  • Effective diameter 247mm
  • Effective area SD 478cm²
  • Moving mass MMS 635g
  • Moving mass (without air load) MMD 627g

Suspensions

  • Stiffness KMS 33.3N/mm
  • Compliance CMS 30µm/N
  • Equivalent volume to the compliance VAS 9.7L
  • Mechanical resistance RMS 19.2N·s/m

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 316mm
  • Baffle cutout diameter 282mm
  • Mounting depth 253mm
  • Volume occupied by the driver 10.2L

Similar subwoofers to B² RAMPAGE12 D1

B² RAMPAGE12 D2 Subwoofer

RAMPAGE12 D2

2 x 2 Ω
12Subwoofer
fS33.8 Hz
SD487 cm²
QTS0.47
xmax40 mm
SPL1W82.5 dB
Bl/√RE16.6
Pmax8000 W