FEATURES
- 1400 Watt Class-D Amplifier
- 18” 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 708-AS mk3 is a portable 18" high-power active subwoofer for live sound applications. It 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 133 dB with exceptional headroom. Designed as the ideal complement for 8" or 10" loudspeakers, it provides outstanding performance in any application. Rear panel controls include volume, EQ, polarity, and crossover frequency selection. The rugged all-wood cabinet with scratch-resistant polyurea coating makes it durable, easy to carry and install securely. With its versatility, sound quality, and high power output, the SUB 708-AS MK3 is perfect for small to mid-sized venues and portable applications.
RCF's improvements in transducer design make them stronger and more powerful so the amplifier follows the evolution. 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 according to EN62368-1 for maximum safety and present a Switch Mode Power Supply section joining high-efficiency with minimum weight.
SUB 7 Series subwoofers can be configured from the rear panel, and features a full set of commands:
- X-OVER PRESET 80Hz/120Hz
- POLARITY REVERSE
- OUT SIGNAL, LINE / HIGH PASS
SPECIFICATIONS
ACOUSTICAL SPECIFICATIONS
Frequency Response
35 Hz ÷ 120 Hz
TRANSDUCERS
Woofer
1 x 18'', 3.0'' v.c
INPUT/OUTPUT SECTION
Input sensitivity
-2 dBu/+4 dBu
PROCESSOR SECTION
Hi-Pass Frequencies
110 Hz
Low-Pass Frequencies
80 Hz
Controls
Volume, EQ, Phase, Xover
POWER SECTION
Total Power
1400 W Peak, 700 W RMS
Low frequencies
1400 W Peak, 700 W RMS
STANDARD COMPLIANCE
Safety agency
CE compliant
PHYSICAL SPECIFICATIONS
Cabinet/Case Material
Baltic birch plywood
Pole mount/Cap
M20 thread
Grille
Steel with clothing
SIZE / WEIGHT
Height
693 mm / 27.28 inches
Width
505 mm / 19.88 inches
Depth
685 mm / 26.97 inches
Weight
40.6 kg / 89.51 lbs
