RCF SUB 905AS MK3 | 15″ Subwoofer – 133 dB |...
$1,999.00
The RCF SUB 905AS MK3 is a professional 15-inch powered PA subwoofer designed to deliver powerful, controlled bass for DJs, live bands, touring sound systems, rental companies, clubs, and professional venues. Featuring a high-output 15-inch woofer with a 3-inch voice coil, a 2200W peak Class-D amplifier, and proprietary Bass Motion Control processing, this active subwoofer produces up to 133 dB maximum SPL with a frequency response of 40 Hz to 120 Hz. Its integrated DSP provides adjustable gain, crossover frequencies, polarity, cardioid mode, and output delay for flexible system configuration. A rugged multi-ply hardwood enclosure with scratch-resistant black polyurea coating, ergonomic carrying handles, and stereo XLR connectivity makes the SUB 905AS MK3 a practical solution for demanding portable and installed sound reinforcement applications.
The RCF SUB 905AS MK3 delivers powerful low-frequency reinforcement in a compact, tour-ready active subwoofer designed for demanding professional audio applications. Its 15-inch high-performance woofer features a 3-inch voice coil and an optimized ceramic magnetic circuit engineered to maintain consistent magnetic flux, reduce distortion, and improve efficiency. Driven by an integrated 2200W peak Class-D amplifier with 1100W RMS power, the subwoofer produces up to 133 dB maximum SPL while maintaining controlled low-frequency reproduction across its 40 Hz to 120 Hz operating range. Its bass-reflex enclosure provides efficient acoustic output, making it suitable for mobile DJ systems, live bands, clubs, event production companies, and professional venues that require substantial bass performance without a larger subwoofer cabinet.
One of the SUB 905AS MK3's key technologies is RCF Bass Motion Control (BMC), an advanced DSP-based approach to managing low-frequency driver excursion. Rather than relying solely on conventional high-pass filtering to restrict potentially excessive woofer movement, BMC uses an algorithm based on the transducer's dynamic behavior to control overexcursion while preserving low-frequency reproduction. This processing helps maintain woofer stability, improve linearity, and reduce unwanted phase changes associated with protective filtering. The result is controlled bass reproduction with enhanced sound integrity, particularly during demanding music passages and high-output operation. The subwoofer also includes integrated RMS and thermal protection with soft limiting to help protect the amplifier and transducer.
The integrated DSP provides flexible controls for configuring the SUB 905AS MK3 as part of a larger professional PA system. Rear-panel adjustments include gain, equalization, crossover frequency selection, polarity, output delay, and cardioid mode. These functions allow audio engineers to match the subwoofer with compatible full-range speakers, align low-frequency response with additional loudspeakers, and adjust system performance for different venues and acoustic environments. Cardioid processing supports configurations using multiple properly positioned subwoofers to reduce unwanted bass behind the speaker system. Stereo XLR inputs and stereo XLR signal outputs provide straightforward connections to mixers, audio processors, and additional powered loudspeakers, while selectable input sensitivity supports common professional audio operating levels.
RCF's high-efficiency Class-D amplifier is designed to deliver strong transient performance while minimizing heat generation and electrical losses. Its 1100W RMS power rating provides substantial continuous amplification capability, while the 2200W peak rating supports demanding musical transients. The amplifier uses convection cooling through a solid aluminum heat exchanger mounted at the rear of the cabinet, eliminating the need for a cooling fan and reducing moving components. A switched-mode power supply helps keep the system compact and efficient, while the integrated crossover circuit and advanced limiting technology maintain reliable operation under demanding sound reinforcement conditions. PowerCON-compatible power input and output connections provide professional AC power connectivity.
Built for touring, rental inventories, and frequent mobile use, the SUB 905AS MK3 features a durable multi-ply hardwood enclosure finished with scratch-resistant black polyurea coating. Its compact, stackable cabinet incorporates ergonomic carrying handles on both sides, while the powder-coated steel grille includes acoustically transparent foam backing for additional dust protection. Integrated speaker pole mounting options allow the enclosure to support compatible satellite speaker configurations with appropriate mounting hardware. Measuring approximately 23.23 inches high, 16.54 inches wide, and 23.23 inches deep, the cabinet provides substantial low-frequency output in a relatively compact footprint. With its powerful amplification, advanced DSP, cardioid configuration support, and rugged construction, the SUB 905AS MK3 is designed for professional users who need dependable bass reinforcement for live sound, DJ entertainment, touring productions, and installed PA systems.
| Brand | RCF |
| Name | RCF SUB 905AS MK3 |
| Primary Category | Professional Powered PA Subwoofer |
| Build Material | Multi-Ply Hardwood Plywood |
| Depth | 23.23 in inch |
| Dimensions | 23.23 x 16.54 x 23.23 in inch |
| Height | 23.23 in inch |
| Included Accessories | Stereo XLR inputs and outputs |
| Mounting Options | Integrated M20 threaded speaker pole receptacle |
| Weight | 69 lb lb |
| Width | 16.54 in inch |
| CE Certified | Yes |
| Warranty Length | Not specified years |
| Control Interfaces | DSP with gain, EQ, polarity, crossover, delay, cardioid mode |
| Onboard DSP | Yes |
| Driver Configuration | Single 15-Inch Active Subwoofer |
| Woofer Size | 15 inch inch |
| Frequency Response | 40 Hz - 120 Hz Hz |
| Impedance | 3 inch voice coil inch |
| IP Rating | Not specified |
| Max SPL | 133 dB dB |
| Power Rating | 2200W peak W |
| Wattage | 1100W RMS W |
Right from your cart
$700+ Orders Qualify for 0% Interest or Up to 24 Months
Pay in 4 or Choose Your Financing Plan
NET/30, then Flexible Simple Interest
Get Longer 0% Options or Up to 60 Months
Prefer better payment terms over VIP discounts? Use our partner website. Standard priced products with up to 24 months at 0% interest, or up to 60 months of equal payments with interest.
View this item on SquareCable.com (opens in a new tab)Store card
Apply for KPODJ's Synchrony Store Card (opens in a new tab) for 6 months of deferred interest on all products and longer terms for certain items.
No reviews found.
Other similar products
