




RCF
RCF SUB 708-AS MK3 18" Active Subwoofer
The RCF 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.
Acoustical Specifications
- Frequency Response: 35 Hz ÷ 120 Hz
- Max SPL @ 1m: 133 dB
- Woofer: 1 x 18'', 3.0'' v.c
- Input signal: bal/unbal
- Input connectors: XLR
- Output connectors: XLR
- Input sensitivity: -2 dBu / +4 dBu
- Hi-Pass Frequencies: 110 Hz
- Low-Pass Frequencies: 80 Hz
- Protections: Thermal, RMS
- Limiter: Soft Limiter
- Controls: Volume, EQ, Phase, Xover
- Total Power: 1400 W Peak, 700 W RMS
- Low frequencies: 1400 W Peak, 700 W RMS
- Cooling: Convection
- Connections: VDE
- Safety agency: CE compliant
- Cabinet/Case Material: Baltic birch plywood
- Handles: One each side
- Pole mount/Cap: M20 thread
- Grille: Steel with clothing
- Color: Black
- 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
- Package Height: 735 mm / 28.94 inches
- Package Width: 565 mm / 22.24 inches
- Package Depth: 745 mm / 29.33 inches
- Package Weight: 45.6 kg / 100.53 lbs
- 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