Tectonic BMR54C-2A

2Ω A
8Ω A

Full-range

Nominal size3x3″ / 72x72 mm
Resonance135 Hz
Q factor0.51
Sensitivity84.2 dB
Linear excursion± 2.4 mm
Program Power60 W
Tectonic BMR54C-2A Full-rangeTectonic BMR54C-2A Full-range
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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 84.2dB
  • Frequency response 135 - 30000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 135Hz
  • Mechanical quality factor QMS 4.23
  • Electrical quality factor QES 0.56
  • Total quality factor QTS 0.51

Large signal parameters

  • Maximum linear excursion xmax 2.4mm
  • Maximum excursion before damage xlim 4.6mm
  • Air volume displaced at xmax VD 6.1cm³
  • Power handling P 30W
  • Program power Pmax 60W

Voice Coil

  • Nominal impedance Z 2Ω
  • DC resistance RE 2.0Ω
  • Inductance (1kHz) LE 0.02mH
  • VC Diameter 38.6mm
  • Winding material Copper Clad Aluminium

Magnet

  • Force factor Bl 3.14N/A
  • Motor constant Bl/√RE 2.24N/√W

Diaphragm

  • Effective diameter 57mm
  • Effective area SD 25.5cm²
  • Moving mass MMS 3.3g
  • Moving mass (without air load) MMD 3.2g
  • Material Doped Paper Composite

Suspensions

  • Stiffness KMS 2.44N/mm
  • Compliance CMS 410µm/N
  • Equivalent volume to the compliance VAS 0.379L
  • Mechanical resistance RMS 0.67N·s/m

Dimensions

  • Nominal size 3 x 3″
  • 72 x 72mm
  • Overall size 72 x 72mm
  • Baffle cutout diameter 70mm
  • Overall depth 35mm
  • Volume occupied by the driver 0.06L
SPL & Impedance
Force factor
Stiffness
Tectonic BMR54C-2A SPL & Impedance
Tectonic BMR54C-2A Force factor
Tectonic BMR54C-2A Stiffness
Tectonic BMR54C-2A Dimensions
PDF fileDatasheet

Export this driver to a simulation software:

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