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BEYMA 15P80Nd

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BEYMA 15P80Nd — 15" / 15 inch · Woofer · Subwoofer / Bass · Neodymium Magnet
800 W AES - 101 dB - 40 – 4000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0017

422.00 € 422.0 EUR 422.00 €

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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 15P80Nd — 15" · Woofer · Neodymium-Magnet

800 W AES · 101 dB Sensitivity · Frequency range 40 Hz – 4000 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 4 "
  • Power handling: 800 W AES
  • Sensitivity: 101 dB
  • Impedance: 8 Ω
  • Magnet: Neodymium
  • Weight: 6 kg
  • Mounting depth: 209 mm
  • Frequency range: 40 – 4000 Hz

Series: P · Part no.: 42A-CHS-TT-BEY-0017

Beyma 15P80Nd: 15" neodymium woofer with 101 dB and 6 kg for tops and mid-bass

Six kilograms for a 15" driver with a 4" voice coil and 800 W AES – the Beyma 15P80Nd from the P series shows what a large-format neodymium motor is good for. With 101 dB sensitivity, 8 Ω and a working range from 40 to 4,000 Hz it is a woofer for 2-way tops, mid-bass horns and flown systems in which efficiency and weight count equally.

The motor with BL 21 Tm moves a cone of 123 g, Fs sits at 39 Hz and Vas at 184 l – a generously soft-suspended driver designed for SPL and bandwidth. An Xmax of 8 mm and 704 cm³ of displacement allow strong kick and upper bass; it is not intended as the sole deep bass in small boxes. Le of 1.1 mH is low for a 4" coil and one reason the driver keeps up cleanly to 4,000 Hz. The mounting depth of 209 mm is unusually large for the format and has to be considered in the cabinet concept.

Use and enclosure

As a guide value from the classic approximation formulas, a vented box of 31 l tuned to 67 Hz with f3 at 90 Hz results – compact and aimed at mid-bass. That suits a 15" top above subwoofers, where the 15P80Nd with its 101 dB raises the headroom of the whole system. For lower reach, build larger and tune lower, or use it in a mid-bass horn, where the strong motor excels. Sealed at 18 l with fc 131 Hz only the role of a mid-bass chamber in a 3-way system remains. Work out the details with the enclosure calculator on 42.audio.

The upper limit of 4,000 Hz gives you freedom in choosing the crossover to the tweeter: well below that limit, where a 15" cone still radiates broadly enough to meet a horn. A 1.4" or 2" compression driver with a horn from the Beyma range completes the driver into a high-output 2-way top. A high-pass below the vent tuning is mandatory at 8 mm Xmax.

What to look out for

  • 6 kg for a 15" with a 4" coil – made for flown tops and touring cabinets.
  • Mounting depth 209 mm: deeper than usual, check cabinet depth and port routing.
  • 101 dB sensitivity, 800 W AES – high SPL with moderate amplifier power.
  • 8 Ω, Re 5.2 Ω: amplifier rated for 8 Ω, high-pass below fb in vented operation.
  • Le 1.1 mH, upper limit 4,000 Hz: suits the woofer role in a 2-way top with horn.

Frequently asked questions

Is the 15P80Nd a subwoofer?

No. The vented guide value of 31 l with f3 around 90 Hz shows the focus on mid-bass and kick. With 8 mm Xmax and 101 dB sensitivity it is the woofer in a top above a subwoofer or the driver in a mid-bass horn, not the deep-bass supplier.

How does it differ from the 18 Sound 15ND930?

The 15ND930 has a similar profile with Fs 36 Hz and Vas 206 l, but is suspended slightly softer still than the Beyma with Fs 39 Hz and 184 l. Both are high-efficiency mid-bass drivers; in a box they behave similarly, the Beyma needs a little less volume.

What amplifier does the 15P80Nd need?

A channel with up to 800 W into 8 Ω exploits the AES rating; with 101 dB sensitivity, far less is enough in many tops. What matters is a high-pass below the tuning frequency so the 8 mm Xmax is not exceeded on low-frequency transients.

Beyma 15P80Nd: manufacturer, spellings and classification

Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 15P80Nd is a 15-inch woofer with neodymium 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 15P80Nd 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 fs39 Hz
Total Q Qts0.21
Electrical Q Qes0.36
Mechanical Q Qms8.2
Equivalent volume Vas184.0 l
Moving mass Mms123.0 g
Cone area Sd880 cm²
Linear excursion Xmax8 mm
Displaced volume Vd704 cm³
Force factor BL21 Tm
DC resistance Re5.2 Ω
Voice coil inductance Le1.1 mH

Enclosure suggestion

The EBP of 108 suggests a bass-reflex enclosure. EBP = fs / Qes = 39 / 0.36

Sealed (Qtc 0.707)

Enclosure volume Vb
17.8 l
System resonance Fc
131 Hz
Cut-off frequency F3
131 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
21.3 l
Tuning frequency Fb
76 Hz
Cut-off frequency F3
101 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 Neodymium
Impedance (Ω) 8
Power handling (W) 800
Sensitivity (dB) 101
Frequency from (Hz) 40
Frequency to (Hz) 4000
Abmessungen & Korb
Diameter 15
Voice coil (inch) 4
Mounting depth (mm) 209
Weight (kg) 6
Thiele-Small-Parameter
Re (Ω) 5.2
Le (mH) 1.1
Fs (Hz) 39
Qms 8.2
Qes 0.36
Qts 0.21
Vas (l) 184
Xmax (mm) 8
Vd (cm³) 704
BL (Tm) 21
Mms (kg) 0.123
Sd (m²) 0.088