BEYMA 12LEX1000Fe
BEYMA 12LEX1000Fe — 12" / 12 inch · Woofer · Bass · Ferrite Magnet
1000 W AES - 95 dB - 50 – 1500 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0030
Documents
BEYMA 12LEX1000Fe — 12" · Woofer · Ferrite-Magnet
1000 W AES · 95 dB Sensitivity · Frequency range 50 Hz – 1500 Hz
Technical data
- Diameter: 12 "
- Voice coil: 3.5 "
- Power handling: 1000 W AES
- Sensitivity: 95 dB
- Impedance: 8 Ω
- Magnet: Ferrite
- Weight: 10.4 kg
- Mounting depth: 166 mm
- Frequency range: 50 – 1500 Hz
Series: LEX · Part no.: 42A-CHS-TT-BEY-0030
Beyma 12LEX1000Fe: 12" woofer with 3.5" voice coil, 1000 W AES and 11 mm Xmax
1000 W AES on a 12" driver with a ferrite magnet: the 12LEX1000Fe from Beyma's LEX series is a woofer for high continuous power in bass boxes and subwoofers. The 3.5" voice coil is the reason for the thermal headroom, and the ferrite motor brings the weight to 10.4 kg. A frequency range of 50 to 1500 Hz and 95 dB sensitivity place it as a bass and lower-midbass driver, not a midrange.
The motor is strong at BL 24.6 Tm on 118 g of moving mass, and Qts 0.3 with Qes 0.32 show that electrical damping dominates. Fs 49 Hz and Vas 38.4 l keep the volume requirement small. Linear excursion of 11 mm on 550 cm² of cone area yields a displacement volume of 605 cm³, which means serious output for a 12" woofer in compact bass enclosures.
Use and enclosure
An EBP of 153 favours bass reflex. As a guide value the Thiele-Small parameters give a volume around 18 l tuned to 61 Hz with an f3 near 69 Hz, so a compact bass box or a dual-12" subwoofer with little volume per driver. Sealed it would be 8.4 l with a cut-off around 115 Hz, useful only with equalisation or as a lower-midbass chamber. Verify the numbers in the enclosure calculator at 42.audio, especially port velocity at 1000 W.
Used as the woofer in a 3-way system or as a bass module, the crossover sits well below 1500 Hz. Le of 1.7 mH produces a noticeable impedance rise, which a passive crossover in the upper range has to take into account.
What to look out for
- 8 Ω nominal, Re 5.4 Ω: amplifier with 1000 W into 8 Ω, limiter and high-pass are mandatory.
- 3.5" voice coil on ferrite: 10.4 kg, high thermal power handling.
- Mounting depth 166 mm: moderate for a 12" driver, fits shallower bass cabinets.
- Xmax 11 mm, Vd 605 cm³: with fb at 61 Hz, protect excursion below the tuning.
- Reflex guide value 18 l: compact volume thanks to Vas 38.4 l.
Frequently asked questions
Is the 12LEX1000Fe a subwoofer driver?
It is a woofer for bass boxes with an emphasis on power handling: 1000 W AES, 11 mm Xmax and 605 cm³ of displacement. In a reflex box around 18 l tuned to 61 Hz the f3 is near 69 Hz; for deep subwoofer duty a driver with a lower tuning is the better fit.
How does it differ from the 18Sound 12LW1400?
The 12LW1400 is tuned lower with Fs 45 Hz and Vas 55 l at the same Qts 0.3 and needs more volume. The 12LEX1000Fe is more compact at Vas 38.4 l and designed for high output in a small box.
How much amplifier power does it need?
For the 1000 W AES rating an amplifier of that order into 8 Ω makes sense. Protection matters more: a high-pass filter below the tuning frequency and a limiter, otherwise the 11 mm of excursion becomes the limiting factor.
Beyma 12LEX1000Fe: manufacturer, spellings and classification
Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 12LEX1000Fe is a 12-inch woofer with ferrite 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 12LEX1000Fe 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 | 49 Hz |
| Total Q Qts | 0.3 |
| Electrical Q Qes | 0.32 |
| Mechanical Q Qms | 3.6 |
| Equivalent volume Vas | 38.4 l |
| Moving mass Mms | 118.0 g |
| Cone area Sd | 550 cm² |
| Linear excursion Xmax | 11 mm |
| Displaced volume Vd | 605 cm³ |
| Force factor BL | 24.6 Tm |
| DC resistance Re | 5.4 Ω |
| Voice coil inductance Le | 1.7 mH |
Enclosure suggestion
The EBP of 153 suggests a bass-reflex enclosure. EBP = fs / Qes = 49 / 0.32
Sealed (Qtc 0.707)
- Enclosure volume Vb
- 8.4 l
- System resonance Fc
- 115 Hz
- Cut-off frequency F3
- 115 Hz
Bass reflex (QB3 after Small)recommended
- Enclosure volume Vb
- 14.4 l
- Tuning frequency Fb
- 66 Hz
- Cut-off frequency F3
- 75 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 %.
- B&C Speakers 12FL76fs 50 Hz · Qts 0.3 · Vas 57 l · in the database
- B&C Speakers 12CL64fs 52 Hz · Qts 0.3 · Vas 64 l · in the database
- 18 Sound 12LW1400fs 45 Hz · Qts 0.3 · Vas 55 l · in the shop
- FaitalPRO 12HP1030fs 45 Hz · Qts 0.3 · Vas 35.9 l · in the database
- PRV Audio 12MB2000FT-NDYfs 55.1 Hz · Qts 0.3 · Vas 71.5 l · in the database
- FaitalPRO 12FH520fs 50 Hz · Qts 0.29 · Vas 73.7 l · in the database
Specifications
| Allgemein | |
|---|---|
| Manufacturer | BEYMA |
| Category | Low Frequency |
| Series | LEX |
| Magnet | Ferrite |
| Impedance (Ω) | 8 |
| Power handling (W) | 1000 |
| Sensitivity (dB) | 95 |
| Frequency from (Hz) | 50 |
| Frequency to (Hz) | 1500 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 12 |
| Voice coil (inch) | 3.5 |
| Mounting depth (mm) | 166 |
| Weight (kg) | 10.4 |
| Thiele-Small-Parameter | |
|---|---|
| Re (Ω) | 5.4 |
| Le (mH) | 1.7 |
| Fs (Hz) | 49 |
| Qms | 3.6 |
| Qes | 0.32 |
| Qts | 0.3 |
| Vas (l) | 38.4 |
| Xmax (mm) | 11 |
| Vd (cm³) | 605 |
| BL (Tm) | 24.6 |
| Mms (kg) | 0.118 |
| Sd (m²) | 0.055 |