BEYMA CD-1014Fe/N
BEYMA CD-1014Fe/N — 1.4" / 1.4 inch · Compression Driver · Tweeter / HF Driver · Ferrite Magnet
70 W AES - 700 – 19000 Hz - 8 Ω
Part no.: 42A-CHS-KD-BEY-0021
Documents
BEYMA CD-1014Fe/N — 1.4" · Compression Driver · Ferrite-Magnet
70 W AES · Frequency range 700 Hz – 19000 Hz
Technical data
- Diameter: 1.4 "
- Voice coil: 1.75 "
- Power handling: 70 W AES
- Impedance: 8 Ω
- Magnet: Ferrite
- Weight: 2 kg
- Mounting depth: 66 mm
- Frequency range: 700 – 19000 Hz
Series: CD · Part no.: 42A-CHS-KD-BEY-0021
Beyma CD-1014Fe/N: 1.4" Ferrite Compression Driver with 70 W AES from 700 Hz
The Beyma CD-1014Fe/N is a compression driver with a 1.4" horn throat and ferrite magnet from the CD series. The voice coil measures 1.75", the impedance is 8 Ω, the power handling 70 W AES. At 2 kg and 66 mm mounting depth it is a compact member of the 1.4" format, which otherwise often comes with considerably larger coils and magnets.
The frequency range extends from 700 Hz to 19,000 Hz, the resonance frequency is 700 Hz and the force factor BL is 6.6 Tm. The combination of a 1.4" throat with a 1.75" coil is the design for boxes that want the larger horn format without the weight or power handling of a 3" driver. Ferrite instead of neodymium makes the motor heavier, but less sensitive to heat and cheaper.
Use and enclosure
The 700 Hz resonance marks the bottom of the frequency response, not the crossover point. A compression driver should be crossed at least an octave above its resonance so the diaphragm never enters the region of large excursion; with 70 W AES and the 1.75" coil this applies all the more. With a steep filter (24 dB/octave) and sufficient distance from the 700 Hz, the CD-1014Fe/N suits two-way boxes with a mid-sized woofer and installations where a 1.4" horn is already specified.
For the horn you need a model with a 1.4" throat; the Beyma horns and waveguides at 42.audio are in the Horns & Waveguides category, where the respective flange is stated. The driver's parameters, including Fs and BL, are stored in the 42.audio driver database and can be compared there with other 1.4" drivers from Beyma.
What to look out for
- 1.4" horn throat: use only with a 1.4" horn or an adapter.
- 70 W AES at 8 Ω, voice coil 1.75".
- Fs 700 Hz: cross well above it with a steep filter.
- Ferrite magnet, 2 kg, 66 mm mounting depth.
- Frequency range 700 Hz to 19,000 Hz, BL 6.6 Tm.
Frequently asked questions
Where should I cross the CD-1014Fe/N?
Well above the 700 Hz resonance. The closer you get to resonance, the larger excursion and distortion become, and the 1.75" coil has limited thermal reserves. A steep filter helps you still place the handover to the woofer low enough.
Ferrite or neodymium: what does it mean here?
The ferrite magnet makes the driver heavier at 2 kg than a comparable neodymium model, but it is uncritical at high temperatures and cheaper. In fixed installations and boxes that are not flown, the weight hardly matters.
Which horn fits?
Any horn with a 1.4" throat. The Beyma horns and waveguides at 42.audio are listed in the Horns & Waveguides category; check the throat diameter there and look for a loading frequency below your planned crossover.
Beyma CD-1014Fe/N: manufacturer, spellings and classification
Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The CD-1014Fe/N is a 1.4-inch compression driver with ferrite magnet from the CD 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 CD-1014Fe/N with all key data in the driver database. More drivers from this manufacturer: Atlas Beyma.
Thiele-Small parameters
| Nominal impedance | 8 Ω |
|---|---|
| Resonance frequency fs | 700 Hz |
| Force factor BL | 6.6 Tm |
Specifications
| Allgemein | |
|---|---|
| Manufacturer | BEYMA |
| Category | Compression Driver |
| Series | CD |
| Magnet | Ferrite |
| Impedance (Ω) | 8 |
| Power handling (W) | 70 |
| Frequency from (Hz) | 700 |
| Frequency to (Hz) | 19000 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 1.4 |
| Voice coil (inch) | 1.75 |
| Mounting depth (mm) | 66 |
| Weight (kg) | 2 |
| Thiele-Small-Parameter | |
|---|---|
| Fs (Hz) | 700 |
| BL (Tm) | 6.6 |