RCF SUB 705-AS Mk3 Active Subwoofer – Product Highlight Series

Posted by Tom Brown on 12/09/2025

At AV Xpert, we have a large stock of high-performance audio solutions available to hire for a variety of events. One product that we have recently added to our inventory is the RCF SUB 705-AS Mk3. This solution is a portable 15" active subwoofer, suitable for live sound applications in small to mid-sized venues. Whether for live music, DJ sets, corporate events, or more, this device offers the perfect combination of power and precision, with an elegant design.

This exceptional product has filled a gap in our inventory, as we previously have not had a 15” subwoofer offering. This sub is a great option for dry hire purposes due to its compact and portable design, without compromising on audio performance. It is easy to transport by car or small van, making it a suitable choice for DJs, live bands or anyone hosting a party.

Powerful Bass

The RCF SUB 705-AS Mk3 features a state-of-the-art transducer with a high-power ceramic magnetic circuit and a powerful Class-D amplifier that delivers sound pressure levels up to 131 dB with exceptional headroom. Engineered for power and stability, it handles low audible frequencies, providing consistent, distortion-free bass.

Bass Motion Control

RCF have equipped the SUB 705-AS Mk3 with their innovative Bass Motion Control technology. This allows is to handle low frequencies without affecting the woofer stability, with extended linearity and better sound integrity. The result is a very high output, extremely low distortion and an incredible natural sound.

Pairing with Loudspeakers

Carefully designed to complement 10-inch or 12-inch loudspeakers, the RCF SUB 705-AS Mk3 pairs seamlessly to create a balanced, full-range sound system capable of handling everything from DJ sets to live music.

The RCF SUB 705-AS Mk3 pairs exceptionally well with RCF’s 7 Series loudspeakers, such as the ART 712-A Mk4, creating a cohesive and powerful full-range sound system.

Versatility

This subwoofer offers the ideal balance of power, sound quality and portability, making it suitable for a wide variety of applications. At AV Xpert, since adding these subwoofers to our inventory earlier this summer, we have already hired them out for many events including private parties, weddings, live music performances and more.

Conclusion

The RCF SUB 705-AS Mk3 is a high-performance subwoofer designed to enhance live sound with precision and power. Compact yet powerful, it’s the perfect solution for anyone looking to enhance their sound system with high-quality bass.

Audio Hire from AV Xpert

At AV Xpert, we offer high-quality audio equipment for hire, including the RCF SUB 705-AS Mk3. Contact us today to learn more or visit our hire shop to browse through our hire stock.