BEYMA 15LEX1600Nd
BEYMA 15LEX1600Nd — 15" / 15 inch · Woofer · Subwoofer / Bass · Neodymium Magnet
1600 W AES - 96 dB - 40 – 1500 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0015
Documents
BEYMA 15LEX1600Nd — 15" · Woofer · Neodymium-Magnet
1600 W AES · 96 dB Sensitivity · Frequency range 40 Hz – 1500 Hz
Technical data
- Diameter: 15 "
- Voice coil: 4 "
- Power handling: 1600 W AES
- Sensitivity: 96 dB
- Impedance: 8 Ω
- Magnet: Neodymium
- Weight: 8.8 kg
- Mounting depth: 181 mm
- Frequency range: 40 – 1500 Hz
Series: LEX · Part no.: 42A-CHS-TT-BEY-0015
Beyma 15LEX1600Nd: 15" neodymium subwoofer with 1,600 W AES at 8.8 kg
The Beyma 15LEX1600Nd combines the high power handling of the LEX 1600 class with a neodymium motor: 1,600 W AES on a 4" voice coil, 96 dB sensitivity, 8 Ω – all at 8.8 kg. It is the driver for subwoofers and bass cabinets that get carried, flown or moved in touring enclosures, where the ferrite sibling would simply be too heavy. The working range from 40 to 1,500 Hz additionally allows use as the woofer in 2-way systems with a low crossover.
In terms of parameters it brings Fs 41 Hz, Qts 0.36 and, at 91 l, the smallest Vas among the 15" LEX models – the suspension is stiffer, so the driver gets by with less box. The EBP of 102 sits just above the border beyond which vented is the better choice. A BL of 20 Tm moves a mass of 106 g, Xmax is 7 mm and displacement 616 cm³. As with the ferrite counterpart: the thermal headroom is the asset, the stroke is conventional.
Use and enclosure
From the Thiele-Small parameters a vented guide value of 73 l follows, tuned to 43 Hz, with f3 at 45 Hz. For a tour-ready 15" sub that is an easily manageable volume with useful extension. Sealed it would be 32 l at fc 81 Hz – usable as a pure bass section in a larger system or with DSP equalisation, but too little for a stand-alone sub. Run both variants cleanly through the enclosure calculator on 42.audio, including the port cross-section for 1,600 W.
Place the crossover to the top well below the upper limit of 1,500 Hz, in the usual sub/top region. With Le 1.2 mH the driver stays controlled in the upper bass. Since 1,600 W of amplifier power quickly exceeds the 7 mm Xmax below the tuning frequency, a high-pass and a limiter are mandatory in the signal chain.
What to look out for
- 8.8 kg with neodymium – the 15" 1,600 W bass for touring and flown bass cabinets.
- Mounting depth 181 mm: standard for 15" sub cabinets, keep the port clear of the magnet.
- 8 Ω, Re 5.2 Ω: amplifier up to 1,600 W into 8 Ω, set the limiter to the 7 mm Xmax.
- Vas 91 l, Qts 0.36: the smallest enclosure within the 15" LEX range.
- Upper limit 1,500 Hz – also usable as the woofer in a 2-way system with a low crossover.
Frequently asked questions
How does the 15LEX1600Nd differ from the 15LEX1000Nd?
Both share Fs 41 Hz and a Qts around 0.36 to 0.37. The 15LEX1600Nd has the 4" coil with 1,600 W AES and, at 91 l, a smaller Vas than the 15LEX1000Nd at 113 l, so it needs less box while handling more power. If you never push 1,600 W, the lighter 15LEX1000Nd is the more economical choice.
Which amplifier is recommended for the 15LEX1600Nd?
A channel with up to 1,600 W into 8 Ω exploits the thermal headroom. What matters is a high-pass below the tuning and a limiter, because mechanically the 7 mm Xmax limits long before the voice coil does.
How does it compare with the 18 Sound 15ND840?
The 15ND840 has similar figures with Fs 43 Hz and Qts 0.37, but a considerably larger Vas of 163 l. The Beyma with 91 l Vas gets by with noticeably less volume – an advantage when the sub has to stay compact.
Beyma 15LEX1600Nd: manufacturer, spellings and classification
Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 15LEX1600Nd is a 15-inch woofer with neodymium magnet from the LEX 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 15LEX1600Nd with all key data in the driver database and the enclosure calculator. More drivers from this manufacturer: Atlas Beyma.
Thiele-Small parameters
| Nominal impedance | 8 Ω |
|---|---|
| Resonance frequency fs | 41 Hz |
| Total Q Qts | 0.36 |
| Electrical Q Qes | 0.4 |
| Mechanical Q Qms | 9.8 |
| Equivalent volume Vas | 91.0 l |
| Moving mass Mms | 106.0 g |
| Cone area Sd | 880 cm² |
| Linear excursion Xmax | 7 mm |
| Displaced volume Vd | 616 cm³ |
| Force factor BL | 20 Tm |
| DC resistance Re | 5.2 Ω |
| Voice coil inductance Le | 1.2 mH |
Enclosure suggestion
The EBP of 102 suggests a bass-reflex enclosure. EBP = fs / Qes = 41 / 0.4
Sealed (Qtc 0.707)
- Enclosure volume Vb
- 31.9 l
- System resonance Fc
- 81 Hz
- Cut-off frequency F3
- 81 Hz
Bass reflex (QB3 after Small)recommended
- Enclosure volume Vb
- 62.5 l
- Tuning frequency Fb
- 46 Hz
- Cut-off frequency F3
- 48 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 %.
- 18 Sound 15ND940fs 41 Hz · Qts 0.36 · Vas 166 l · in the database
- Beyma 15LEX1000Ndfs 41 Hz · Qts 0.37 · Vas 113 l · in the shop
- FaitalPRO 15HP1010fs 40 Hz · Qts 0.37 · Vas 107.5 l · in the database
- 18 Sound 15ND840fs 43 Hz · Qts 0.37 · Vas 163 l · in the shop
- 18 Sound 15W750fs 39 Hz · Qts 0.37 · Vas 218 l · in the shop
- FaitalPRO 15FH530fs 39 Hz · Qts 0.35 · Vas 140.6 l · in the database
Specifications
| Allgemein | |
|---|---|
| Manufacturer | BEYMA |
| Category | Low Frequency |
| Series | LEX |
| Magnet | Neodymium |
| Impedance (Ω) | 8 |
| Power handling (W) | 1600 |
| Sensitivity (dB) | 96 |
| Frequency from (Hz) | 40 |
| Frequency to (Hz) | 1500 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 15 |
| Voice coil (inch) | 4 |
| Mounting depth (mm) | 181 |
| Weight (kg) | 8.8 |
| Thiele-Small-Parameter | |
|---|---|
| Re (Ω) | 5.2 |
| Le (mH) | 1.2 |
| Fs (Hz) | 41 |
| Qms | 9.8 |
| Qes | 0.4 |
| Qts | 0.36 |
| Vas (l) | 91 |
| Xmax (mm) | 7 |
| Vd (cm³) | 616 |
| BL (Tm) | 20 |
| Mms (kg) | 0.106 |
| Sd (m²) | 0.088 |