BEYMA CD-101Fe/PK
BEYMA CD-101Fe/PK — 1" / 1 inch · Compression Driver · Tweeter / HF Driver · Ferrite Magnet
40 W AES - 2000 – 20000 Hz - 8 Ω
Part no.: 42A-CHS-KD-BEY-0037
Documents
BEYMA CD-101Fe/PK — 1" · Compression Driver · Ferrite-Magnet
40 W AES · Frequency range 2000 Hz – 20000 Hz
Technical data
- Diameter: 1 "
- Voice coil: 1.1 "
- Power handling: 40 W AES
- Impedance: 8 Ω
- Magnet: Ferrite
- Weight: 0.5 kg
- Mounting depth: 55 mm
- Frequency range: 2000 – 20000 Hz
Series: CD · Part no.: 42A-CHS-KD-BEY-0037
Beyma CD-101Fe/PK: Lightweight 1" Ferrite Compression Driver with 40 W AES
Half a kilo, 55 mm mounting depth, 1" throat: the Beyma CD-101Fe/PK is a compression driver from the CD series for small boxes and installations. Ferrite magnet, 1.1" voice coil, 8 Ω and 40 W AES power handling describe a driver designed not for maximum SPL but for compactness and price.
The frequency range runs from 2,000 Hz to 20,000 Hz and the force factor BL is 2.3 Tm. A 1" driver with a 1.1" coil has a small, light diaphragm that works cleanly at the very top but has little thermal mass; that is the reason for the relatively high lower limit and the 40 W rating. Among 1" ferrite drivers the CD-101Fe/PK at 0.5 kg is one of the lightest, which makes it interesting for boxes where every gram and every centimetre of depth counts.
Use and enclosure
The crossover should sit well above 2,000 Hz, with a filter of at least 12 dB/octave, preferably 24 dB/octave. That keeps the driver out of the region where a small diaphragm with little motor force goes into excursion. Typical partners are 6" to 10" woofers in compact two-way boxes: speech reinforcement, small monitors, ceiling speakers with a horn tweeter, or as a replacement in existing boxes with a 1" horn.
At 42.audio the Beyma horns and waveguides are in the Horns & Waveguides category; for the CD-101Fe/PK any model with a 1" throat qualifies, and for crossovers above 2,000 Hz a compact horn is enough. The parameters, including BL, are in the driver database, where you can compare the driver against the other 1" models of the Beyma CD series.
What to look out for
- 40 W AES: use a limiter, cross well above 2,000 Hz.
- 1" horn throat: fits any 1" horn, compact models are sufficient.
- 0.5 kg, 55 mm mounting depth: for shallow and light enclosures.
- Ferrite magnet, 8 Ω, voice coil 1.1".
- BL 2.3 Tm: small motor, not designed for low crossovers.
Frequently asked questions
Which box suits the CD-101Fe/PK?
Small two-way boxes with 6" to 10" woofers, speech systems, small monitors and installations. If you need high continuous SPL or crossovers below 2,000 Hz, a larger driver from the CD series is the better choice.
How much amplifier power can it take?
40 W AES is the thermal limit. What matters is a limiter that prevents clipping, because distorted signals push extra high-frequency energy into the 1.1" coil. At 8 Ω it runs on any power amp.
Which horn fits the CD-101Fe/PK?
Any horn with a 1" throat. In the Beyma Horns & Waveguides category at 42.audio you will find the matching models; check the stated throat diameter. Given the high crossover, the horn's loading frequency is uncritical.
At 42.audio you get the BEYMA CD-101Fe/PK 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 | 200 Hz |
| Force factor BL | 2.3 Tm |
Specifications
| Allgemein | |
|---|---|
| Manufacturer | BEYMA |
| Category | Compression Driver |
| Series | CD |
| Magnet | Ferrite |
| Impedance (Ω) | 8 |
| Power handling (W) | 40 |
| Frequency from (Hz) | 2000 |
| Frequency to (Hz) | 20000 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 1 |
| Voice coil (inch) | 1.1 |
| Mounting depth (mm) | 55 |
| Weight (kg) | 0.5 |
| Thiele-Small-Parameter | |
|---|---|
| Fs (Hz) | 2000 |
| BL (Tm) | 2.3 |