Features
1400 Watt Class-D Amplifier
15” Woofer, bass reflex housing
Stereo Crossover
Switchable Crossover Frequencies
Polarity-reverse switch
Electronic equalization, soft limiter and protection
Stereo XLR Input, Stereo XLR Signal Output
Bass Motion Control excursion management
The SUB 705-AS mk3 is a high-power 15” active subwoofer for live sound applications. It features a state-of-the-art transducer with a high-power ceramic magnet circuit and a powerful Class-D Amplifier that delivers sound pressure levels up to 131 dB with exceptional headroom. Designed as the ideal complement to 10” or 12” loudspeakers, it provides outstanding performance in any application. With its quality and high power output, the SUB 705-AS MK3 is perfect for small to mid-sized venues and portable applications.
Legendary subwoofers
RCF subwoofers are the first choice of many sound engineers, thanks to the very high SPL levels at very low frequencies, small dimensions compared to the competitors, self-powered design, long-term reliability, and impressive size/weight to SPL output ratio. Your crowd will be able to live an engaging immersive experience in both live sound or DJing applications.
Responsive Image
Responsive Image
Power that Moves
RCF improvements in transducer design make them stronger and more powerful so the amplifier keeps up. With 1400W peak power, the Class-D amplifier manages extreme sound pressure levels with an ultra-fast attack, realistic transient response, and very low heat loss. The speaker design is energy-efficient so there's no need for a cooling fan. The amplifier is attached to a solid aluminum heat exchanger in the rear of the cabinet with no moving parts. The stereo input circuit with crossover features a new low distortion design with an advanced safety limiter, maintaining the true character of the input signal at all levels. RCF amplifiers are designed in accordance with EN62368-1 for maximum safety and feature a Switch Mode Power Supply section, combining high efficiency with minimal weight.
SUB 7 Series subwoofers can be configured from the rear panel and feature a full set of commands:
- X-OVER PRESET 80Hz/120Hz
- POLARITY REVERSE
- OUT SIGNAL, LINE / HIGH PASS
Bass Motion Control
When searching for extended bass with enhanced performance, RCF engineers found a way to remove the high-pass filter, replacing it with a forward-thinking approach. Introducing BMC (Bass Motion Control), the newly advanced woofer excursion management feature. The speaker equipped with BMC can handle the lowest audible frequencies without affecting the woofer stability, with extended linearity and better sound integrity.
The BMC method works by creating a complete map of the dynamic behavior of the woofer to generate a custom algorithm that only limits over-excursions. This gives total freedom of signal reproduction to the transducer. While high-pass filters typically protect woofer motion from becoming destructive but alter phase behavior, the new BMC algorithm breaks conventional rules.
Tour-Ready Workhorse
The subwoofer is suitable for a wide range of live sound applications. The rugged all-plywood cabinet is easy to carry and stack due to its lightweight. All are equipped with ergonomic handles with rubber grips for easy set-up and tear down. The M20 threaded pole mount on the top allows the cabinet to support the speakers with a pole mount. The heavy-duty polyurea coating, the powder-coated metal grille, and the rugged structure of the cabinet withstand long-term use and transportation. Separate housing for the amplifier guarantees component efficiency and reliability. An acoustically transparent sound foam backing on the inside of the grille ensures protection from dust and humidity. With its front vented ports, the subwoofer can also be used in recessed spaces.
Acoustic Specifications
Frequency Response
40 Hz - 120 Hz
Max SPL @ 1m
131 dB
Transducers
Woofer
15'', 3.0'' v.c
Input/Output Section
Input Signal
balanced/unbalanced
Input Connectors
XLR
Output Connectors
XLR
Input Sensitivity
-2 dBu/+4 dBu
Processor Section
High-Pass Frequencies
110 Hz
Low-Pass Frequencies
80 Hz
Protections
Thermal, RMS
Limiter
Soft Limiter
Controls
Volume, EQ, Phase, Crossover
Power Section
Total Power
1400 W Peak, 700 W RMS
Low Frequencies
1400 W Peak, 700 W RMS
Cooling
Convection
Connections
VDE
Standard Compliance
Safety Agency
CE Compliant
Physical Specifications
Cabinet/Case Material: Baltic birch plywood
Handles: One on each side
Pole Mount/Cap: M20 thread
Grill: Steel with clothing
Color: Black
Size / Weight: Height: 598 mm / 23.54 inches
Width: 420 mm / 16.54 inches
Depth: 590 mm / 23.23 inches
Weight: 30 kg / 66.14 lbs
Shipping Information: Package Height: 648 mm / 25.51 inches
Package Width: 638 mm / 25.12 inches
Package Depth: 478 mm / 18.82 inches
Package Weight: 34.9 kg / 76.94 lbs
