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 SUB 708-AS MK3 Features
- 1400W 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
- SUB 708-AS MK3 18-Inch Powered Subwoofer1
- Acoustical
- Frequency response: 35 hz ÷ 120 hz
- Max spl @ 1m: 133 db
- TransducersWoofer: 18'', 3.0'' v.c
- Input/output section
- Input signal: Bal/unbal
- Input connectors: Xlr
- Output connectors: Xlr
- Input sensitivity: -2 dbu/+4 dbu
- Processor section
- Hi-pass frequencies: 110Hz
- Low-pass frequencies: 80Hz
- Protections: Thermal, rms
- Limiter: Soft limiter
- Controls: Volume, eq, phase, xover
- Power section
- Total power: 1400W peak, 700W rms
- Low frequencies: 1400W peak, 700W rms
- Cooling: Convection
- Connections: Vde
- Standard complianceSafety agency: Ce compliant
- Physical
- Cabinet/case material: Baltic birch plywood
- Handles: One each side
- Pole mount/cap: Yes
- Grille: Steel with clothing
- Color: Black
- Size
- Height: 693mm/27.28"
- Width: 505mm/19.88"
- Depth: 685mm/26.97"
- Weight: 40 kg/88.18 lbs
- Shipping
- Package height: 735mm/28.94"
- Package width: 565mm/22.24"
- Package depth: 745mm/29.33"
- Package weight: 45 kg/99.21 lbs
About Powered Speakers at Sound Productions
Get all the features you need right out of the box with powered speakers from Sound Productions! All speakers need a sort of amplifier to function. Powered speakers (also known as active speakers or self-powered speakers) have built-in amplifiers, so they’re ready to connect to your audio source without any other required accessories—making them great for environments where space is limited.
Powered speakers are typically the go-to choice for portable use because they’re affordable, easy to set up, and simple to use as standalone sound systems. They’re great for achieving an immersive audio experience with the minimal amount of hassle—perfect for delivering a polished performance in smaller venues that may not have their own sound system installed. With fewer components to pack, they’re also a great choice for traveling events, such as mobile DJ performances or adding music to an outdoor event. Many models include other built-in features such as effects, compressors, and more to make one powered speaker virtually a standalone PA system!
