RCF SUB 9007-AS Active Dual 21-Inch Subwoofer – Excellent Condition
If you are looking for powerful, reliable and professional-grade bass reinforcement for demanding sound applications, the RCF SUB 9007-AS subwoofer is an outstanding option to consider. Designed for high-performance live sound environments, this active dual 21-inch subwoofer combines substantial low-frequency output, integrated amplification, advanced digital signal processing and a durable touring-grade enclosure. Available in excellent condition for €3,500 each, it is an excellent opportunity for audio professionals who need serious bass performance for concerts, festivals, touring productions and large-scale events.
The RCF SUB 9007-AS is designed for applications where powerful, controlled low frequencies are essential to the overall sound experience. From outdoor concerts and music festivals to live performances, professional DJ events and touring productions, this subwoofer provides the low-frequency foundation needed to support a powerful and balanced PA system.
Powerful Dual 21-Inch Neodymium Drivers
One of the most important features of the RCF SUB 9007-AS is its dual 21-inch neodymium woofer configuration. The two high-power, hyper-vented woofers use 4-inch voice coils and are engineered to deliver substantial low-frequency output for demanding professional sound applications.
The dual-driver design makes this subwoofer particularly suitable for large sound systems where strong bass impact, depth and headroom are important. Whether you are reinforcing electronic music, live bands, percussion, hip-hop or other bass-heavy performances, the RCF SUB 9007-AS provides a powerful low-frequency foundation when correctly configured with compatible loudspeakers and system processing.
Its frequency response extends from 20 Hz to 400 Hz, according to the manufacturer’s published specifications, allowing it to cover a broad low-frequency operating range. The appropriate crossover settings will depend on the main loudspeakers, system design and intended application.
High-Power Integrated Amplification
The RCF SUB 9007-AS features an integrated digital amplifier rated at 7,200 watts peak and 3,600 watts RMS. This active configuration eliminates the need for a separate external power amplifier dedicated to driving the subwoofer, simplifying system deployment and reducing the number of separate components required.
With a published maximum sound pressure level of 141 dB, the SUB 9007-AS is designed for high-output professional applications. Its combination of powerful amplification and dual 21-inch drivers makes it suitable for sound rental businesses, concert production companies, touring engineers and event organizers who require substantial bass reinforcement.
The integrated amplification also works alongside the onboard processing to support controlled and consistent operation when the unit is configured appropriately for the sound system.
Advanced DSP and System Control
Another valuable advantage of the RCF SUB 9007-AS is its integrated digital signal processing. The DSP-controlled input section provides selectable presets and adjustment options that help sound engineers configure the subwoofer for different system requirements.
Available controls include gain, equalization, crossover settings, phase selection and output delay. These adjustments are important when integrating the subwoofer with full-range loudspeakers, aligning low-frequency output with the main system and optimizing performance for a particular venue.
The unit also includes cardioid configuration control, which can be useful when multiple subwoofers are arranged to manage low-frequency radiation toward selected areas. Effective cardioid performance depends on the number of cabinets, their placement, their processing and the configuration used.
For professional production teams, these tools offer valuable flexibility when adapting a sound system to different stages, venues and audience layouts.
RDNet Remote Monitoring and Control
The RCF SUB 9007-AS includes onboard RDNet connectivity, providing access to supported remote monitoring and control functions. RDNet is designed to help audio professionals manage compatible equipment and monitor system operation through an integrated software environment.
This capability is particularly useful in larger installations and touring systems where multiple loudspeakers and subwoofers must be configured and monitored efficiently. It can help streamline system adjustments and make it easier for engineers to manage supported parameters across a compatible audio setup.
The subwoofer also provides XLR audio connections and RDNet Ethercon connectivity, while Powercon input and output connections support power distribution between compatible units using suitable cables and approved configurations.
Durable Touring-Grade Construction
Built for professional use, the RCF SUB 9007-AS features a Baltic birch plywood enclosure designed for demanding live sound and touring applications. Its robust construction is complemented by a heavy-duty steel front grille that helps protect the drivers during normal handling and operation.
The cabinet includes eight ergonomic side handles, making it easier for trained crew members to handle the unit during loading, unloading and installation. Its design also supports stacking and integration with compatible RCF systems.
With approximate dimensions of 1,188 mm wide, 708 mm high and 785 mm deep, and a published weight of approximately 96 kg, this is a substantial professional subwoofer. Appropriate transport equipment and sufficient personnel should be arranged for safe handling.
The enclosure’s construction and integrated mechanical features make the SUB 9007-AS a practical option for professional sound rental companies and production teams that regularly deploy equipment in demanding environments.
Ideal Applications for Professional Audio Systems
The RCF SUB 9007-AS is suitable for a broad range of professional audio applications, including:
- Concerts and live music performances
- Outdoor festivals and large events
- Touring sound reinforcement
- Professional DJ setups and electronic music events
- Rental and production companies
- Large venues requiring substantial low-frequency reinforcement
- Compatible RCF HDL-series loudspeaker systems
The manufacturer specifies integration options with compatible RCF HDL 50-A 4K, HDL 20-A and HDL 10-A systems. Proper system configuration, amplification requirements for other components, crossover alignment and deployment planning should always be considered when assembling a complete PA system.
Excellent Condition – Available for €3,500 Each
This RCF SUB 9007-AS subwoofer is offered in excellent condition at €3,500 per unit. It is an attractive option for buyers seeking professional dual 21-inch bass reinforcement without purchasing new equipment.
Its combination of high output, integrated amplification, onboard DSP, RDNet control and touring-grade construction makes it a valuable addition to an existing professional PA inventory or a new sound reinforcement system.
For sound rental companies, event production specialists, touring professionals and audio system integrators, the RCF SUB 9007-AS offers the capabilities expected from a high-power professional subwoofer.
Contact us for availability, additional product information and purchasing details. Prospective buyers are encouraged to confirm the unit’s condition, included accessories, quantity available and transportation arrangements before completing their purchase.
Choose the RCF SUB 9007-AS when your professional sound system demands powerful low-frequency performance, flexible processing and robust touring-oriented construction.
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