Tectonic TEBM54C30-8

8Ω

Full-range

Nominal size	3x3″ / 72x72 mm
Resonance	150 Hz
Q factor	0.48
Sensitivity	85.5 dB
Linear excursion	± 2.8 mm
Program Power	60 W

Tectonic TEBM54C30-8 Full-range

Specifications

Sensitivity (1W, 1m, infinite baffle) SPL1W 85.5dB
Frequency response 150 - 40000Hz

Thiele & Small parameters

Resonance frequency (free air) fS 150Hz
Mechanical quality factor QMS 5.37
Electrical quality factor QES 0.52
Total quality factor QTS 0.48

Large signal parameters

Maximum linear excursion xmax 2.8mm
Maximum excursion before damage xlim 4.6mm
Air volume displaced at xmax VD 7.1cm³
Power handling P 30W
Program power Pmax 60W

Voice Coil

Nominal impedance Z 8Ω
DC resistance RE 7.7Ω
Inductance (1kHz) LE 0.07mH
VC Diameter 38.6mm
Winding material Copper Clad Aluminium

Magnet

Force factor Bl 6.5N/A
Motor constant Bl/√RE 2.34N/√W

Diaphragm

Effective diameter 57mm
Effective area SD 25.5cm²
Moving mass MMS 3g
Moving mass (without air load) MMD 2.9g
Material Doped Paper Composite

Suspensions

Stiffness KMS 2.7N/mm
Compliance CMS 370µm/N
Equivalent volume to the compliance VAS 0.341L
Mechanical resistance RMS 0.53N·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 0.07L
Net weight 0.265kg

Tectonic TEBM54C30-8 SPL & Impedance

Tectonic TEBM54C30-8 Dimensions

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Tectonic BMR54C-8A Full-range

Tectonic BMR54C-8A 8 Ω
3 x 3″ Full-range
fS	146 Hz
SD	25.5 cm²
150 - 30000 Hz
QTS	0.52
xmax	2.4 mm
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Pmax	60 W

Tectonic BMR54C-2A Full-range

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fS	135 Hz
SD	25.5 cm²
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Tectonic TEBM54C30-8F Full-range

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fS	125 Hz
SD	25.5 cm²
120 - 40000 Hz
QTS	0.41
xmax	2.8 mm
SPL1W	85.2 dB
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