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BEYMA 15QLEX1600Fe

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BEYMA 15QLEX1600Fe — 15" / 15 inch · Woofer · Subwoofer / Bass · Ferrite Magnet
1600 W AES - 96 dB - 35 – 1000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0018

434.00 € 434.0 EUR 434.00 €

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  • 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)
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  • Qes
  • Qts
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  • Vd (cm³)
  • BL (Tm)
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BEYMA 15QLEX1600Fe — 15" · Woofer · Ferrite-Magnet

1600 W AES · 96 dB Sensitivity · Frequency range 35 Hz – 1000 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 4 "
  • Power handling: 1600 W AES
  • Sensitivity: 96 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 13.9 kg
  • Mounting depth: 188 mm
  • Frequency range: 35 – 1000 Hz

Series: QLEX · Part no.: 42A-CHS-TT-BEY-0018

Beyma 15QLEX1600Fe: 15" woofer with 4" voice coil and 1600 W AES for tight enclosures

The Beyma 15QLEX1600Fe is a 15" woofer from the QLEX series with a ferrite motor, 4" voice coil and 1600 W AES power handling. It is built as a bass and subwoofer driver for PA use, where sustained power and control matter more than the last few hertz of extension. The usable range runs from 35 to 1000 Hz, sensitivity is 96 dB at 8 Ω.

Within the 15" class the motor stands out: with a Qts of 0.21 and a BL of 18.5 Tm driving only 105 g of moving mass, the driver is heavily damped electrically. Vas of 102 l is low for a 15", so the suspension is comparatively stiff. Taken together this means the 15QLEX1600Fe wants small, tight enclosures and can be kept under control with a lot of power instead of going soft in large volumes. Xmax is 7.2 mm, displacement volume 634 cm³.

Use and enclosure

An EBP of 79 allows both vented and sealed designs. The classic approximation formulas give a very compact vented guideline of 17 l tuned to 56 Hz with an f3 around 76 Hz; sealed, a Butterworth alignment lands at 9.9 l with fc at 111 Hz. These figures mainly show how strong the motor is. For more extension you can tune lower in a larger volume and accept a shallower roll-off – how far you can push that is best checked in the enclosure calculator at 42.audio. In multi-way use, cross over well below the upper limit of 1000 Hz so that the 4" coil and its 1.1 mH inductance do not reach into the midrange.

If you plan a horn-loaded subwoofer or a bandpass box, the low Qts and high power handling are good starting conditions. Allow for the mounting depth of 188 mm and the weight of 13.9 kg in your design.

What to look out for

  • 8 Ω nominal, Re 5.3 Ω: an easy load for any PA amplifier rated for 8 Ω.
  • Ferrite magnet, 13.9 kg: size the baffle and the mounting hardware accordingly.
  • Mounting depth 188 mm with a 4" voice coil – leave enough room behind the baffle.
  • Qts 0.21 and Vas 102 l: a driver for small, tightly tuned boxes, not for large volumes.
  • Xmax 7.2 mm: moderate excursion, protect it with a high-pass below the tuning frequency.

Frequently asked questions

Does the 15QLEX1600Fe make sense as a home cinema subwoofer?

With Qts 0.21 and Vas 102 l it is designed for compact, heavily damped enclosures and needs power there to deliver deep bass. For home use with limited volume and a strong amplifier that can work, but bass below the tuning frequency will need equalisation. Run the alignment through the enclosure calculator first.

How does it differ from the Beyma 15P80Nd?

The 15P80Nd has a softer suspension with fs 39 Hz and Vas 184 l at a similar Qts of 0.21, so it is designed into larger boxes. The 15QLEX1600Fe with fs 33 Hz, Vas 102 l and its 4" coil focuses on power handling in a small volume. 42.audio carries both drivers in the shop.

Which amplifier suits the 15QLEX1600Fe?

Nominal impedance is 8 Ω, power handling 1600 W AES. An amplifier that delivers this continuously into 8 Ω gets the most out of the driver. More important than peak power is a clean high-pass below the box tuning so the 7.2 mm Xmax is never exceeded.

Beyma 15QLEX1600Fe: manufacturer, spellings and classification

Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 15QLEX1600Fe is a 15-inch woofer with ferrite magnet from the QLEX series, available from 42.audio, Beyma dealer in Germany, with datasheet and full specifications in the driver database.

At 42.audio you get the BEYMA 15QLEX1600Fe with all key data in the driver database and the enclosure calculator. More drivers from this manufacturer: Atlas Beyma.

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs33 Hz
Total Q Qts0.21
Electrical Q Qes0.42
Mechanical Q Qms10.5
Equivalent volume Vas102.0 l
Moving mass Mms105.0 g
Cone area Sd880 cm²
Linear excursion Xmax7.2 mm
Displaced volume Vd634 cm³
Force factor BL18.5 Tm
DC resistance Re5.3 Ω
Voice coil inductance Le1.1 mH

Enclosure suggestion

The EBP of 79 is in the intermediate range — either works; sealed plays tighter, bass reflex deeper and louder. EBP = fs / Qes = 33 / 0.42

Sealed (Qtc 0.707)

Enclosure volume Vb
9.9 l
System resonance Fc
111 Hz
Cut-off frequency F3
111 Hz

Bass reflex (QB3 after Small)

Enclosure volume Vb
11.8 l
Tuning frequency Fb
64 Hz
Cut-off frequency F3
85 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) 96
Frequency from (Hz) 35
Frequency to (Hz) 1000
Abmessungen & Korb
Diameter 15
Voice coil (inch) 4
Mounting depth (mm) 188
Weight (kg) 13.9
Thiele-Small-Parameter
Re (Ω) 5.3
Le (mH) 1.1
Fs (Hz) 33
Qms 10.5
Qes 0.42
Qts 0.21
Vas (l) 102
Xmax (mm) 7.2
Vd (cm³) 634
BL (Tm) 18.5
Mms (kg) 0.105
Sd (m²) 0.088