
The OMNITRONIC CST-6 is a powerful 2-way flush-mount speaker designed for high-quality speech and background music in indoor Public Address (PA) systems utilizing 100 V line technology.
2-Way System: Features a 6" woofer (approx. 15 cm) and a 0.5" tweeter (approx. 1.27 cm) for excellent sound playback.
Movable Tweeter: The tweeter is often described as pivotable or swivel to allow precise sound alignment and better room coverage.
Technology: Operates on a 100 V public address system.
Power Taps: Features an integrated 100 V transformer with three switchable power taps for flexible volume adjustment across different zones or areas.
Installation: Designed for easy installation in false ceilings using a clip mounting system.
Durability: Described as scratchproof and shockproof, with a metal grille.
| Feature | Detail |
| Type | 2-way Flush-mount Ceiling Speaker (Passive) |
| Transmission Technology | 100 V ELA (Public Address) |
| Components | 6" Woofer, 0.5" Tweeter |
| Power Rating (RMS) | 20 W (Nominal) |
| Program Power | 40 W |
| Power Tapping (100 V) | 7.5 W, 15 W, 30 W RMS (Switchable via open cable ends) |
| Frequency Range | 90 Hz – 20 kHz |
| Sensitivity (1W/1m) | 87 dB |
| Max. SPL (1m) | 99 dB (or 103 dB in some listings) |
| Mounting Cutout | Ø 200 mm (20 cm) |
| Outer Diameter | Ø 230 mm (23 cm) |
| Mounting Depth | 90 mm (9 cm) |
| Weight | 1.60 kg |
| Color | White (Black also exists for this series, but white is standard for this model number) |
| Protection Rating | IP20 (Indoor use) |
| Applications | Restaurants, bars, hotels, offices, retail spaces, fitness areas |