BEYMA SG-8
BEYMA SG-8 — Horn / Waveguide
Part no.: 42A-CHS-HW-BEY-0003
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BEYMA SG-8 — Horn / Waveguide
Technical data
- Weight: 0.75 kg
Series: SG · Part no.: 42A-CHS-HW-BEY-0003
Beyma SG-8: SG-series waveguide at 0.75 kg for two-way tops
The SG-8 belongs to Beyma's SG series, in which the manufacturer groups waveguides for its compression drivers, and weighs 0.75 kg. Within the range it sits alongside the SG-6. How low a horn or waveguide controls dispersion depends on its mouth size; the dimensions of the SG-8 are given in the manufacturer's drawing, and they decide how low the crossover can sensibly sit.
The principle: below the frequency at which the wavelength clearly exceeds the mouth, every horn loses control and radiates increasingly omnidirectionally. A larger mouth shifts that point downwards and thus allows a crossover at which waveguide and mid-woofer show similar directivity, which is decisive for an even power response in the room. So check whether the mouth of the SG-8 matches your planned crossover frequency and the size of your mid-woofer.
Use and enclosure
A typical application is a two-way top with a Beyma compression driver used in clubs, halls, on stages or in installations. The baffle must provide room for the waveguide's mouth next to the mid-woofer; the weight of 0.75 kg is uncritical but calls for proper screw fixing. For DIY builders, the SG-8 is also an option in a high-quality hi-fi or studio project when controlled dispersion in the room is desired.
You choose the matching driver from the Beyma compression driver category at 42.audio; horn fitting and bolt pattern must match the SG-8. The crossover frequency should sit with a margin above the waveguide's lower limit and above the driver's resonance, the filter should be steep, and the level advantage of the horn system over the mid-woofer is matched with an attenuator or DSP. Matching with the mid-woofer is done with the driver database at 42.audio.
What to look out for
- Weight 0.75 kg: provide solid screw fixing to the baffle.
- Mouth size determines how low pattern control reaches; check the manufacturer's drawing.
- Check throat size and bolt pattern against the chosen Beyma driver.
- Design the crossover steep and with a margin above the driver's resonance.
Frequently asked questions
When should I prefer the SG-8 over the SG-6?
Compare mouth size, throat size and coverage angle of both models from the manufacturer's drawings against your planned crossover frequency and cabinet size. The model whose mouth controls dispersion down to the crossover frequency is the right choice.
Which Beyma drivers fit the SG-8?
All Beyma compression drivers at 42.audio whose horn fitting matches the throat size of the SG-8. Compare diameter and bolt pattern with the manufacturer's data before buying.
Is the SG-8 also suitable for hi-fi?
Yes, a waveguide with even dispersion brings benefits in a living room too, because reflections from side walls and ceiling decrease. The prerequisite is a measured crossover design with a matching compression driver.
Beyma SG-8: manufacturer, spellings and classification
Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The SG-8 is a horn / waveguide from the SG 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 SG-8 with all key data in the driver database. More drivers from this manufacturer: Atlas Beyma.
Specifications
| Allgemein | |
|---|---|
| Manufacturer | BEYMA |
| Category | Horn / Waveguide |
| Series | SG |
| Abmessungen & Korb | |
|---|---|
| Weight (kg) | 0.75 |