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BEYMA 8BR40/N

BEYMA 8BR40/N

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BEYMA 8BR40/N — 8" / 8 inch · Full-Range Driver · Full-Range / Wideband
50 W AES - 91 dB - 30 – 6000 Hz - 8 Ω
Part no.: 42A-CHS-BB-BEY-0003

67.00 € 67.0 EUR 67.00 €

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  • Manufacturer
  • Category
  • Series
  • Impedance (Ω)
  • Power handling (W)
  • Sensitivity (dB)
  • Frequency from (Hz)
  • Frequency to (Hz)
  • Diameter
  • Voice coil (inch)
  • Weight (kg)
  • Re (Ω)
  • Le (mH)
  • Fs (Hz)
  • Qms
  • Qes
  • Qts
  • Vas (l)
  • Xmax (mm)
  • Vd (cm³)
  • BL (Tm)
  • Mms (kg)
  • Sd (m²)

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BEYMA 8BR40/N — 8" · Full-Range Driver

50 W AES · 91 dB Sensitivity · Frequency range 30 Hz – 6000 Hz

Technical data

  • Diameter: 8 "
  • Voice coil: 1 "
  • Power handling: 50 W AES
  • Sensitivity: 91 dB
  • Impedance: 8 Ω
  • Weight: 1.35 kg
  • Frequency range: 30 – 6000 Hz

Series: BR · Part no.: 42A-CHS-BB-BEY-0003

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs30 Hz
Total Q Qts0.39
Electrical Q Qes0.48
Mechanical Q Qms2.1
Equivalent volume Vas89.1 l
Moving mass Mms21.0 g
Cone area Sd220 cm²
Linear excursion Xmax6.7 mm
Verschiebevolumen Vd147 cm³
Force factor BL6.8 Tm
DC resistance Re5.5 Ω
Voice coil inductance Le0.5 mH

Enclosure suggestion

The EBP of 62 is in the intermediate range — either works; sealed plays tighter, bass reflex deeper and louder. EBP = fs / Qes = 30 / 0.48

Sealed (Qtc 0.707)

Enclosure volume Vb
39.0 l
System resonance Fc
54 Hz
Cut-off frequency F3
54 Hz

Bass reflex (QB3 after Small)

Enclosure volume Vb
79.7 l
Tuning frequency Fb
31 Hz
Cut-off frequency F3
32 Hz

Vb is the required net internal volume, Fb the tuning frequency of the reflex port and F3 the frequency at which the level has dropped by 3 dB. Calculated approximation after Small. A starting point for simulation, not a finished build plan.

Specifications

Allgemein
Manufacturer BEYMA
Category Full Range
Series BR
Impedance (Ω) 8
Power handling (W) 50
Sensitivity (dB) 91
Frequency from (Hz) 30
Frequency to (Hz) 6000
Abmessungen & Korb
Diameter 8
Voice coil (inch) 1
Weight (kg) 1.35
Thiele-Small-Parameter
Re (Ω) 5.5
Le (mH) 0.5
Fs (Hz) 30
Qms 2.1
Qes 0.48
Qts 0.39
Vas (l) 89.1
Xmax (mm) 6.7
Vd (cm³) 147
BL (Tm) 6.8
Mms (kg) 0.021
Sd (m²) 0.022