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BEYMA 15P80Fe/N

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BEYMA 15P80Fe/N — 15" / 15 inch · Woofer · Subwoofer / Bass · Ferrite Magnet
800 W AES - 101 dB - 30 – 4000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0022

303.00 € 303.0 EUR 303.00 €

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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)
  • Qms
  • Qes
  • Qts
  • Vas (l)
  • Xmax (mm)
  • Vd (cm³)
  • BL (Tm)
  • Mms (kg)
  • Sd (m²)

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BEYMA 15P80Fe/N — 15" · Woofer · Ferrite-Magnet

800 W AES · 101 dB Sensitivity · Frequency range 30 Hz – 4000 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 4 "
  • Power handling: 800 W AES
  • Sensitivity: 101 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 12.5 kg
  • Mounting depth: 163 mm
  • Frequency range: 30 – 4000 Hz

Series: P · Part no.: 42A-CHS-TT-BEY-0022

Beyma 15P80Fe/N: 15" ferrite woofer with 101 dB and Fs 32 Hz for horn and vented use

101 dB sensitivity from a 15" ferrite driver – the Beyma 15P80Fe/N from the P series achieves that with a light 88 g cone, a motor with BL 22.1 Tm and a 4" voice coil. 800 W AES power handling, 8 Ω and a working range from 30 to 4,000 Hz describe a woofer with unusual bandwidth, one that plays both deep and far into the midrange.

The parameters are distinctive: Fs 32 Hz with a Vas of 305 l means a very soft suspension, while Qts 0.18 and an EBP of 168 show a heavily damped motor. This combination – low resonance, huge Vas, low Qts – is the classic profile of a horn woofer: in a front-loaded horn or scoop you fully exploit the 101 dB and the low Fs. Xmax 7.5 mm and 660 cm³ of displacement are more than sufficient for horn operation, where the acoustic load keeps excursion small. At 12.5 kg the driver is a case for stationary cabinets.

Use and enclosure

The classic approximation gives a vented guide value of only 33 l tuned to 63 Hz with f3 at 92 Hz – the formulas punish the low Qts. In practice the 15P80Fe/N is therefore either built larger and tuned lower or, better still, placed in a horn that converts the strong motor into SPL. The sealed variant of 21 l with fc 126 Hz is only suitable as a mid-bass chamber in a 3-way system. For your own alignment beyond the guide values, the enclosure calculator on 42.audio is available.

The upper limit of 4,000 Hz permits a 2-way design with compression driver and horn; cross well below that limit so the beaming of the 15" cone matches the horn's coverage. Le of 1.2 mH is low for a 4" coil and supports the midrange ability. With vented boxes a high-pass belongs below the tuning; in a horn the acoustic load takes over excursion control within the working range.

What to look out for

  • Qts 0.18, Vas 305 l: a horn woofer, not a driver for small vented boxes.
  • 101 dB sensitivity – 800 W AES is enough for very high SPL.
  • Weight 12.5 kg, mounting depth 163 mm: ferrite motor for stationary cabinets.
  • 8 Ω, Re 5.3 Ω: any amplifier rated for 8 Ω, high-pass in vented operation.
  • Upper limit 4,000 Hz, Le 1.2 mH: 2-way operation with a horn tweeter is possible.

Frequently asked questions

Why is the vented guide volume so small?

Because the classic approximation formulas output a very small volume with a high tuning for Qts 0.18 – 33 l at 63 Hz. That is mathematically correct but rarely the practical goal. Drivers with this profile show their strength in a horn or in larger boxes tuned lower.

What distinguishes the 15P80Fe/N from the 15P80Nd?

The 15P80Nd is the neodymium version with Fs 39 Hz, Qts 0.21 and Vas 184 l – stiffer suspended than the ferrite sibling with Fs 32 Hz and 305 l Vas. The Fe/N goes deeper and wants the horn; the Nd is lighter and copes with smaller enclosures.

Can I run it in a scoop or front-loaded horn?

Yes, the profile of low Fs, low Qts and 101 dB sensitivity is ideal for that. The acoustic load of the horn reduces excursion, so the 7.5 mm Xmax is hardly stressed within the working range. Below the horn's mouth cut-off you should still apply a high-pass.

Beyma 15P80Fe/N: manufacturer, spellings and classification

Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 15P80Fe/N is a 15-inch woofer with ferrite magnet from the P 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 15P80Fe/N 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 fs32 Hz
Total Q Qts0.18
Electrical Q Qes0.19
Mechanical Q Qms5.5
Equivalent volume Vas305.0 l
Moving mass Mms88.0 g
Cone area Sd880 cm²
Linear excursion Xmax7.5 mm
Displaced volume Vd660 cm³
Force factor BL22.1 Tm
DC resistance Re5.3 Ω
Voice coil inductance Le1.2 mH

Enclosure suggestion

The EBP of 168 suggests a bass-reflex enclosure. EBP = fs / Qes = 32 / 0.19

Sealed (Qtc 0.707)

Enclosure volume Vb
21.1 l
System resonance Fc
126 Hz
Cut-off frequency F3
126 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
21.3 l
Tuning frequency Fb
73 Hz
Cut-off frequency F3
103 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 P
Magnet Ferrite
Impedance (Ω) 8
Power handling (W) 800
Sensitivity (dB) 101
Frequency from (Hz) 30
Frequency to (Hz) 4000
Abmessungen & Korb
Diameter 15
Voice coil (inch) 4
Mounting depth (mm) 163
Weight (kg) 12.5
Thiele-Small-Parameter
Re (Ω) 5.3
Le (mH) 1.2
Fs (Hz) 32
Qms 5.5
Qes 0.19
Qts 0.18
Vas (l) 305
Xmax (mm) 7.5
Vd (cm³) 660
BL (Tm) 22.1
Mms (kg) 0.088
Sd (m²) 0.088