The RCF HDL 28-A is a versatile and professional active line array speaker designed for use in live sound reinforcement and permanent installations. Equipped with two 8-inch neodymium woofers and a 3-inch titanium diaphragm compression driver, it ensures powerful bass response and crystal-clear high frequencies. Its Class D amplifier delivers up to 2200W of peak power and supports ultra-linear output with minimal distortion. The system includes RDNet network control for comprehensive monitoring, configuration, and tuning of system components. The symmetrical design with coplanar woofers and advanced DSP filtering provides consistent directivity with no roll-off zones. Constructed from a robust composite material with integrated rigging hardware, the HDL 28-A enables fast setup and secure suspension of up to 20 modules. The HDL 36-AS subwoofer can be paired as an ideal suspended low-frequency extension. This system is ideal for concerts, theaters, arenas, and other demanding audio environments.
Features
2200W peak two-channel Class D amplifier
135 dB SPL maximum sound pressure
48 kHz / 32-bit DSP processing
RDNet network management onboard
2 x 8-inch neodymium woofers with 2.5-inch voice coils
1.4-inch compression driver with 3.0-inch titanium diaphragm
Exclusive FiRPHASE filtering technology
Cutoff frequency at 750 Hz
Hyper-vented magnetic structures for extended performance
Integrated rigging system for fast and adjustable array setup
Optional HDL 36-AS subwoofer for suspended bass reinforcement
Lightweight composite cabinet with powder-coated grille
Specifications
| Frequency Response | 50 Hz – 20000 Hz |
| Maximum SPL @ 1m | 135 dB |
| Horizontal Coverage | 100° |
| Vertical Coverage | 15° |
| Compression Driver | 1 x 1.4″ neo, 3.0″ voice coil |
| Woofers | 2 x 8″ neo, 2.5″ voice coil |
| Input Signal | Balanced / Unbalanced |
| Input Connectors | XLR, RDNet Ethercon |
| Output Connectors | XLR, RDNet Ethercon |
| Input Sensitivity | +4 dBu |
| Crossover Frequency | 750 Hz |
| Protections | Thermal, RMS |
| Limiter | Soft Limiter |
| DSP Control | RDNet onboard |
| Total Power (Peak / RMS) | 2200 W Peak / 1100 W RMS |
| HF Power (Peak / RMS) | 600 W Peak / 300 W RMS |
| LF Power (Peak / RMS) | 1600 W Peak / 800 W RMS |
| Cooling System | Forced |
| Power Connections | Powercon IN/OUT |
| Cabinet Material | Polypropylene Composite |
| Handles | 2 Side Handles |
| Grill | Steel with internal acoustic foam |
| Color | Black, White |
| Height | 294 mm (11.57 inches) |
| Width | 569 mm (22.4 inches) |
| Depth | 491 mm (19.33 inches) |
| Weight | 20.6 kg (45.42 lbs) |
| Package Height | 375 mm (14.76 inches) |
| Package Width | 650 mm (25.59 inches) |
| Package Depth | 500 mm (19.69 inches) |
| Package Weight | 23.6 kg (52.03 lbs) |
| Safety Compliance | CE compliant |

















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