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BD 20-5-048 Cell 20 mm DIAMOND TWEETER 

The BD20-5-048 is a 0.8 inch tweeter with ultra hard diamond dome in a 48 mm body. A proprietary clamping technique provides easy mounting and adapting to individual frontplates. As the dome breakup is above the audible range and well damped, no dome cutouts are required. A unique FEA optimized underhung motor design with vented titanium voice coil former and double neodymium magnet guarantees low energy storage, excellent heat transfer and high excursion capability for low power compression and ultra low distortion. The new designed soft fabric surround centers the moving parts with improved linearity.
We recommend our BD20-5-048 in an application above 2500 Hz.

Our diamond speakers are only sold to loudspeaker producers.

BD020-05-048-CELL_DimWeb-Draht.png

Dome material Diamond
Application Tweeter
Overall diameter 47.6 MM
Cutout Diameter/Square 48 MM
Overall depth 29 MM
Motor assembly depth --
Motor assembly diameter --
   

Main Features

full featured cell concept
underhung motor design
vented vc & pole piece
no ferrofluid filling
2500 HZ - 60000 HZ

Technology
Booklet
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Mechanical Data

Specification   Value Unit
Overall diameter   47.6 mm
Cutout Diameter/Square   48 mm
Min. frontplate thickness   6 mm
Overall depth   29 mm
Motor assembly depth   -- mm
Motor assembly diameter   -- mm
Screwfitting   -- mm
Terminal   +: 4.8 x 0.8 / -: 2.8 x 0.8 mm
Shipping weight (pair)   0.6 Kg
Shipping box size (pair)   175/82/45 mm
   

Thiele/Small Parameters

Specification   Value Unit
Sensitivity (2.83V / 1m) Spl 90 dB
DC-resistance Re 4.5 Ohm
Resonance frequency Fs 1032 Hz
Equivalent volume of air Vas - ltr
Mechanical Q Qms 11.17  
Electrical Q Qes 0.75  
Total Q Qts --  
Effective piston area Sd -- Cm2
Moving mass Mms -- g
Suspension compliance CMs -- mm/n
Mechanical resistance Rms -- Kg*s
   

Voice Coil Parameters

Specification   Value Unit
Power handling p 50 W
Linear excursion Xmax +/-0.8 mm
Voice coil diameter   -- mm
Voice coil former material   Ti  
Voice coil material   Cu  
Voice coil inductance Le 0.05 mH
Force factor  Bl -- N/A
Motor type   Underhung  
Ferrofluid filling   No  
   

Frequency Response [DB]

FRQ_BD20-5-048_Cell_prog.png

Impedance [Ohm]

IMP_BD20-5-048_Cell_prog.png

Harmonic Distortion [%]

DIST_BD20-5-048_Cell_prog.png

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