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BEYMA 21QLEX1600Fe

BEYMA 21QLEX1600Fe

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BEYMA 21QLEX1600Fe — 21" / 21 inch · Woofer · Subwoofer / Bass · Ferrite Magnet
1600 W AES - 98 dB - 30 – 1000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0002

643.00 € 643.0 EUR 643.00 €

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  • Manufacturer
  • Category
  • Series
  • Magnet
  • Impedance (Ω)
  • Power handling (W)
  • Sensitivity (dB)
  • Frequency from (Hz)
  • Frequency to (Hz)
  • Diameter
  • Voice coil (inch)
  • Mounting depth (mm)
  • 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 21QLEX1600Fe — 21" · Woofer · Ferrite-Magnet

1600 W AES · 98 dB Sensitivity · Frequency range 30 Hz – 1000 Hz

Technical data

  • Diameter: 21 "
  • Voice coil: 4 "
  • Power handling: 1600 W AES
  • Sensitivity: 98 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 17.1 kg
  • Mounting depth: 266 mm
  • Frequency range: 30 – 1000 Hz

Series: QLEX · Part no.: 42A-CHS-TT-BEY-0002

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs30 Hz
Total Q Qts0.28
Electrical Q Qes0.3
Mechanical Q Qms4.5
Equivalent volume Vas309.0 l
Moving mass Mms388.0 g
Cone area Sd1.734 cm²
Linear excursion Xmax13 mm
Verschiebevolumen Vd2.254 cm³
Force factor BL36.4 Tm
DC resistance Re5.4 Ω
Voice coil inductance Le4 mH

Enclosure suggestion

The EBP of 100 is in the intermediate range — either works; sealed plays tighter, bass reflex deeper and louder. EBP = fs / Qes = 30 / 0.3

Sealed (Qtc 0.707)

Enclosure volume Vb
57.5 l
System resonance Fc
76 Hz
Cut-off frequency F3
76 Hz

Bass reflex (QB3 after Small)

Enclosure volume Vb
92.6 l
Tuning frequency Fb
44 Hz
Cut-off frequency F3
51 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.

Comparable drivers

Same size, same type, Qts within ±30 %.

Specifications

Allgemein
Manufacturer BEYMA
Category Low Frequency
Series QLEX
Magnet Ferrite
Impedance (Ω) 8
Power handling (W) 1600
Sensitivity (dB) 98
Frequency from (Hz) 30
Frequency to (Hz) 1000
Abmessungen & Korb
Diameter 21
Voice coil (inch) 4
Mounting depth (mm) 266
Weight (kg) 17.1
Thiele-Small-Parameter
Re (Ω) 5.4
Le (mH) 4
Fs (Hz) 30
Qms 4.5
Qes 0.3
Qts 0.28
Vas (l) 309
Xmax (mm) 13
Vd (cm³) 2254
BL (Tm) 36.4
Mms (kg) 0.388
Sd (m²) 0.1734