NVX XCW121

2x1Ω
2x2Ω

Subwoofer

Nominal diameter12″ / 325 mm
Resonance35.9 Hz
Q factor0.43
Sensitivity85.5 dB
Linear excursion± 30 mm
Program power4000 W
NVX XCW121 SubwooferNVX XCW121 SubwooferNVX XCW121 Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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 85.5dB
  • Frequency response 20 - 200Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 35.9Hz
  • Mechanical quality factor QMS 2.89
  • Electrical quality factor QES 0.51
  • Total quality factor QTS 0.43

Large signal parameters

  • Maximum linear excursion (one way) xmax 30mm
  • Air volume displaced at xmax VD 1414cm³
  • Power handling P 2000W
  • Program power Pmax 4000W

Voice Coil

  • Nominal impedance Z 2 x 1Ω
  • DC resistance (in series) RE 1.8Ω
  • Inductance (1kHz, in series, estimated) LE 1.79mH

Magnet

  • Force factor (in series) Bl 17.6N/A
  • Motor constant Bl/√RE 13.1N/√W

Diaphragm

  • Effective diameter 245mm
  • Effective area SD 471cm²
  • Moving mass (including air load) MMS 303g
  • Moving mass MMD 295g

Suspensions

  • Stiffness KMS 15.4N/mm
  • Compliance CMS 65.1µm/N
  • Equivalent volume to the compliance VAS 16.4L
  • Mechanical resistance RMS 23.6N·s/m

Dimensions

  • Nominal diameter 12″
  • 325mm
  • Overall diameter 325mm
  • Baffle cutout diameter 285mm
  • Mounting depth 263mm
  • Volume occupied by the driver 5.66L
  • Net weight 25.5kg
Impedance
Step response
Tone Burst
PDF fileDatasheet

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