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BD 25-6-034 Cell 25 mm Diamond Tweeter 

The BD25–6–034 is a 1 inch tweeter with ultra hard diamond dome in a 82 mm frontplate. The unsurpassed rigidity of the diamond dome leads to most accurate conversion from electrical energy to sound pressure. As the dome breakup frequency is around 50 kHz, no damping cutouts are required. An FEA optimized underhung motor design with vented aluminium voice coil former and neodymium magnet guarantees low energy storage and good heat transfer. The soft fabric surround and ferrofluid with high viscosity center the moving parts with excellent linearity. We recommend our BD25-6-034 in an application above 2500 Hz.

Our diamond speakers are only sold to loudspeaker producers.

BD025-06-034_DimWeb-Draht.png

Dome material Diamond
Application Tweeter
Overall diameter 82X82 MM
Cutout Diameter/Square 64X64 MM
Overall depth 57 MM
Motor assembly depth --
Motor assembly diameter --
   

Main Features

underhung motor design
soft fabric surround
vented vc & pole piece
ferrofluid filling
2500 HZ - 50000 HZ

Technology
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Mechanical Data

Specification   Value Unit
Overall diameter   82X82 mm
Cutout Diameter/Square   64X64 mm
Min. frontplate thickness   5 mm
Overall depth   57 mm
Motor assembly depth   -- mm
Motor assembly diameter   -- mm
Screwfitting   DIN 7984, Ø 4,50 mm
Terminal   +: 4.8 x 0.8 / -: 2.8 x 0.8 mm
Shipping weight (pair)   1.00 Kg
Shipping box size (pair)   130/130/90 mm
   

Thiele/Small Parameter

Specification   Value Unit
Sensitivity (2.83V / 1m) Spl 91 dB
DC-resistance Re 5.8 Ohm
Resonance frequency Fs 1052 Hz
Equivalent volume of air Vas - ltr
Mechanical Q Qms 2.26  
Electrical Q Qes 1.99  
Total Q Qts 1.06  
Effective piston area Sd 5.94 Cm2
Moving mass Mms 0.25 g
Suspension compliance CMs 0.069 mm/n
Mechanical resistance Rms 0.84 Kg*s
   

Voice Coil Parameters

Specification   Value Unit
Power handling p 120 W
Linear excursion Xmax +/-0.1 mm
Voice coil diameter   16.4 mm
Voice coil former material   Al  
Voice coil material   Cu  
Voice coil inductance Le 0.03 mH
Force factor  Bl 2.61 N/A
Motor type   underhung  
Ferrofluid filling   Yes  
   

Frequency Response [DB]

FRQ_BD25_6_034_prog.png

Impedance [Ohm]

IMP_BD25_6_034_prog.png

Harmonic Distortion [%]

Klirr_BD25_6_034_prog.png

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