Experience Deep Bass and Convenient Control
The RCF SUB 9019-AS is far beyond a powerful-sounding subwoofer; its built-in DSP and RDNet networked control make it an essential hub for your entire audio system. This subwoofer delivers a robust 4,000 watts through a high-performance 19-inch high-excursion precision transducer, producing subterranean bass down to 30Hz with a rafter-shaking 138dB maximum SPL. You’ll welcome the added convenience of the SUB 9019-AS’s digital ACE crossover and factory-tuned speaker presets — plus, with RDTap contactless configuration, you can easily apply your desired settings to each speaker in your system with a simple tap. Additionally, RCF’s innovative Bass Motion Control ensures precise woofer excursion management. To top it off, this sub features M20 pole mounts on the top and side for flexible top loudspeaker placement. Housed in a weatherproof polyurea-coated plywood cabinet and sporting a rugged PowerCON True1 AC connector, the RCF SUB 9019-AS offers premium low-frequency extension and comprehensive system control in a portable package.
Revolutionize subwoofer setup with RDTap
The SUB 9019-AS brandishes RCF’s revolutionary RDTap feature. RDTap enables contactless setup management and parameter updates, even when the SUB 9019-AS is unpowered. By tapping the RDTap logo on the subwoofer’s back panel with a smartphone running the RDTap app, you can instantly transfer all your setup parameters, including preset configurations, EQ, cardioid functionality, mid-low compensation for line arrays, and precise delay and time alignment settings to each loudspeaker in your system. RDTap is particularly useful for upgrading your subwoofers and revitalizing older systems with the assistance of presets, EQs, delays, and management via RDNet. Furthermore, unlike long-distance control technologies, RDTap transmits data at close range, ensuring that changes are applied only when intended, without interference from external devices. At Sweetwater, we’ve found that RDTap offers an efficient and user-friendly way to manage subwoofer settings and performance before setup.

RCF SUB 9019-AS Features:
- Pumps a brawny 4,000W through a high-power 19-in. woofer
- Yields subterranean low end down to 30Hz
- Delivers a rafter-shaking 138dB maximum SPL
- Digital ACE crossover includes convenient factory-tuned speaker presets
- RDTap contactless configuration applies your desired settings to each speaker in your system with a simple tap
- Includes EQ, mid-low compensation for line arrays, cardioid functionality, and precise delay and time alignment settings
- Bass Motion Control provides exacting woofer excursion management
- M20 pole mounts on the top and side offer flexible top speaker placement
- Weatherproof polyurea-coated plywood cabinet and rugged PowerCON True1 AC connector
- Magnetic I/O panel rain cover included