RCF SUB 9004AS | 18in - 136 dB Active Subwoofer ...
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RCF SUB 9004-AS is a high-power 18" active subwoofer designed for demanding touring applications and professional sound reinforcement. Equipped with a hyper-vented neodymium transducer, 2800W Class-D amplifier, and advanced RDNet remote control, it delivers exceptional low-frequency clarity, high SPL, and system flexibility.
The RCF SUB 9004-AS is purpose-built for concert-level sub-bass performance in live touring and rental environments. At its core is a custom 18" hyper-vented neodymium woofer featuring a 4" inside/outside voice coil and a composite cone made of carbon fiber, fiberglass, and cellulose—engineered for maximum rigidity and minimal distortion.
The onboard 2800W Class-D amplifier delivers deep and punchy bass from 30 Hz to 400 Hz, while a 32-bit DSP provides precise control over crossover points, limiter behavior, EQ, and delay. All settings can be accessed remotely via RDNet for real-time system tuning, monitoring, and integration with larger RCF arrays and full-range systems.
The rugged Baltic birch plywood cabinet is finished with weather-resistant treatment and includes M20 pole mounts on the top and side for flexible deployment. Built-in handles and compatibility with the optional kart dolly system simplify transport and stacking. Whether you're flying subs for large events or stacking them for mobile gigs, the SUB 9004-AS offers maximum performance and control in a road-ready format.
| Brand | RCF |
| Name | RCF SUB 9004AS | 18in - 136 dB Active Subwoofer | 2800W with RDNet Control & DSP |
| Primary Category | Active Subwoofer |
| Build Material | Baltic birch plywood with weather-resistant finish |
| Dimensions | 27.56 x 21.97 x 27.56 in (700 x 558 x 700 mm) inches |
| Included Accessories | Power cable, User manual |
| Mounting Options | Dual M20 threaded pole mounts on top and side |
| Transportability | Built-in handles, compatible with optional kart dolly system |
| Weight | 125.66 lb (57 kg) lb |
| Control Interfaces | RDNet network control, onboard DSP, delay settings |
| Onboard DSP | Yes |
| Frequency Response | 30 Hz – 400 Hz Hz |
| Max SPL | 136 dB dB |
| Power Rating | 2800W peak / 1400W RMS W |
| Woofer Size | 18 inches in |
