BEYMA 12P80Fe/V2
BEYMA 12P80Fe/V2 — 12" / 12 inch · Woofer · Bass · Ferrite Magnet
700 W AES - 99 dB - 50 – 4000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0031
Documents
BEYMA 12P80Fe/V2 — 12" · Woofer · Ferrite-Magnet
700 W AES · 99 dB Sensitivity · Frequency range 50 Hz – 4000 Hz
Technical data
- Diameter: 12 "
- Voice coil: 4 "
- Power handling: 700 W AES
- Sensitivity: 99 dB
- Impedance: 8 Ω
- Magnet: Ferrite
- Weight: 11.5 kg
- Mounting depth: 135 mm
- Frequency range: 50 – 4000 Hz
Series: P · Part no.: 42A-CHS-TT-BEY-0031
Beyma 12P80Fe/V2: 12" woofer/midrange with 99 dB, 4" voice coil and Qts 0.21 for horn loading
99 dB sensitivity from a 12" driver is a statement, and that is exactly what the 12P80Fe/V2 from Beyma's P series is built for. The ferrite motor with a 4" voice coil moves only 68 g of cone mass with a BL of 23 Tm, which yields Qes 0.22 and Qts 0.21. An operating range of 50 to 4000 Hz and 700 W AES power handling make it the woofer/midrange for horn loading, front-loaded bass horns and high-efficiency two-way boxes.
Fs 48 Hz and Vas 61 l belong to a light, softly suspended cone, while the tight motor provides the low Qts. Xmax is 7.5 mm and displacement 412 cm³, showing that efficiency comes before excursion here. At 11.5 kg it is a heavy ferrite driver, while the 135 mm mounting depth stays moderate.
Use and enclosure
The EBP of 218 is unambiguous: the 12P80Fe/V2 wants bass reflex or, better still, a horn load. The classic approximation formulas give a reflex guide value of around 10 l tuned to 82 Hz with an f3 near 111 Hz, sealed 5.9 l with fc around 162 Hz. Neither describes a bass enclosure but rather a lower-mid or midrange chamber. If you want to use the range from 50 Hz upwards, simulate larger volumes with lower tuning in the enclosure calculator at 42.audio, or put the driver in a front-loaded horn where the low Qts and light cone show their strength.
In the midrange it is rated up to 4000 Hz, and the crossover to the tweeter should sit well below that. Le of 1.1 mH is low for a 4" coil driver and keeps the impedance flat in the crossover region. For the matching treble, 42.audio carries Beyma's compression drivers and horns.
What to look out for
- 8 Ω nominal, Re 5 Ω: at 99 dB you often need far less than the 700 W AES.
- Qts 0.21, EBP 218: horn loading or bass reflex, sealed only as a midrange chamber.
- Xmax 7.5 mm, Vd 412 cm³: no excursion monster, a high-pass filter is mandatory.
- 11.5 kg ferrite motor at 135 mm mounting depth.
- Le 1.1 mH: small impedance rise, easy to handle in the crossover.
Frequently asked questions
What is the 12P80Fe/V2 intended for?
Applications where efficiency counts: front-loaded horns, midrange horns and two-way boxes with 99 dB sensitivity. As a plain reflex woofer with a deep f3 it is not the first choice because of Qts 0.21.
Which comparable driver does 42.audio carry?
The 18Sound 12ND930 with Fs 50 Hz, Qts 0.21 and Vas 70 l, and the 12ND940 with Fs 49 Hz, Qts 0.2 and Vas 64.8 l are very close. The 12P80Fe/V2 has Vas 61 l and relies on ferrite instead of neodymium.
How low can I cross it over?
The range starts at 50 Hz, but the guide values show that a textbook reflex box only reaches down to about 111 Hz. In a horn or with a large volume and equalisation it goes lower; the simulation will tell.
Beyma 12P80Fe/V2: manufacturer, spellings and classification
Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 12P80Fe/V2 is a 12-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 12P80Fe/V2 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 | 48 Hz |
| Total Q Qts | 0.21 |
| Electrical Q Qes | 0.22 |
| Mechanical Q Qms | 6.5 |
| Equivalent volume Vas | 61.0 l |
| Moving mass Mms | 68.0 g |
| Cone area Sd | 550 cm² |
| Linear excursion Xmax | 7.5 mm |
| Displaced volume Vd | 412 cm³ |
| Force factor BL | 23 Tm |
| DC resistance Re | 5 Ω |
| Voice coil inductance Le | 1.1 mH |
Comparable drivers
Same size, same type, Qts within ±30 %.
- B&C Speakers 12CL76fs 48 Hz · Qts 0.21 · Vas 59 l · in the database
- 18 Sound 12ND930fs 50 Hz · Qts 0.21 · Vas 70 l · in the shop
- 18 Sound 12ND940fs 49 Hz · Qts 0.2 · Vas 64.8 l · in the shop
- B&C Speakers 12NDL76fs 50 Hz · Qts 0.2 · Vas 73 l · in the database
- FaitalPRO 12FH500fs 45 Hz · Qts 0.22 · Vas 80.3 l · in the database
- 18 Sound 12ND710fs 52 Hz · Qts 0.2 · Vas 92 l · in the shop
Specifications
| Allgemein | |
|---|---|
| Manufacturer | BEYMA |
| Category | Low Frequency |
| Series | P |
| Magnet | Ferrite |
| Impedance (Ω) | 8 |
| Power handling (W) | 700 |
| Sensitivity (dB) | 99 |
| Frequency from (Hz) | 50 |
| Frequency to (Hz) | 4000 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 12 |
| Voice coil (inch) | 4 |
| Mounting depth (mm) | 135 |
| Weight (kg) | 11.5 |
| Thiele-Small-Parameter | |
|---|---|
| Re (Ω) | 5 |
| Le (mH) | 1.1 |
| Fs (Hz) | 48 |
| Qms | 6.5 |
| Qes | 0.22 |
| Qts | 0.21 |
| Vas (l) | 61 |
| Xmax (mm) | 7.5 |
| Vd (cm³) | 412 |
| BL (Tm) | 23 |
| Mms (kg) | 0.068 |
| Sd (m²) | 0.055 |