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BD 90-6-727 Diamond DOME Midrange

The BD90-6-727 is a 5 inch midrange driver with diamond dome.

Similiar to our C90-6-724, the new design facilitates an ideal acoustical center identical to our CELL tweeters and bass drivers. The innovative construction provides ideal conditions for layouting the spider and magnetic system, and in combination with the unique 20 carat diamond dome, it ensures the lowest distortion rates that we have ever achieved.

The magnetic system which delivers 1.8 Tesla does not cover the rear of the dome, eliminating reflections and energy storage. The proprietary CELL-clamping technology enables easy assembly and adjustment for various front panel designs.

Your individual logo can be applied to the milled basket  upon request.

We recommend our BD90-6-727 for an application from 200 Hz – 10000 Hz.

Our diamond speakers are only sold to loudspeaker producers.

BD051-06-585-CELL_DimWeb-Draht.png

Dome material Diamond
Application MIDRANGE
Overall diameter 124 MM
Cutout Diameter/Square 124.4 MM
Overall depth 56 MM
Motor assembly depth --
Motor assembly diameter --
   

Main Features

full featured cell concept
90 mm diamond dome, 20 carat
ideal acoustical center
no reflections at the back
Underhung motor design
200 HZ - 10000 HZ

TECHNOLOGy
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Mechanical Data

Specification   Value Unit
Overall diameter   124 mm
Cutout Diameter/Square   124.4 mm
Min. frontplate thickness   8 mm
Overall depth   53 mm
Motor assembly depth   -- mm
Motor assembly diameter   -- mm
Screwfitting   -- mm
Terminal   +: 6.3 x 0.8 / -: 4.8 x 0.8 mm
Shipping weight (pair)   6.0 Kg
Shipping box size (pair)   350/160/110 mm
   

Thiele/Small Parameters

Specification   Value Unit
Sensitivity (2.83V / 1m) Spl 92 dB
DC-resistance Re 6.57 Ohm
Resonance frequency Fs 133,75 Hz
Equivalent volume of air Vas 1.33 ltr
Mechanical Q Qms 6,26  
Electrical Q Qes 0.417  
Total Q Qts 0.39  
Effective piston area Sd 73.8 Cm2
Moving mass Mms 8.21 g
Suspension compliance CMs 0.172 mm/n
Mechanical resistance Rms 1.10 Kg*s
   

voice coil parameters

Specification   Value UNIT
Power handling p 100 W
Linear excursion Xmax +/-3.0 mm
Voice coil diameter   80 mm
Voice coil former material   Ti  
Voice coil material   Cu  
Voice coil inductance Le 0.13 mH
Force factor  Bl 10.5 N/A
Motor type   unDERHUNG  
Ferrofluid filling   NO  
   

Frequency Response [DB]

BD90-Frequency.png

Impedance [Ohm]

BD90-Impedance.png

 

Harmonic Distortion [%]

BD90-DIstortion.png

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