Description
RCF SUB 708-AS MK3 18" Active Subwoofer
Bring powerful, controlled low-frequency performance to your PA system with the RCF SUB 708-AS MK3, a professional 18-inch active subwoofer designed for live sound, DJs, venues, events and portable PA applications.
Powered by a 1400W peak / 700W RMS Class-D amplifier, the SUB 708-AS MK3 delivers up to 133 dB maximum SPL, giving your system deep, punchy bass with excellent headroom. Its 18-inch woofer and bass-reflex enclosure extend low-frequency response down to 35 Hz, making it ideal for reinforcing kick drums, bass instruments and full-range music.
RCF's Bass Motion Control technology helps manage woofer excursion while maintaining clarity and low-frequency performance at high output levels. Built-in processing includes electronic EQ, soft limiting and protection, while rear-panel controls provide easy access to volume, EQ, polarity and crossover settings.
Stereo XLR inputs and outputs make integration with professional PA systems simple, and selectable crossover frequencies allow the SUB 708-AS MK3 to pair effectively with a wide range of powered speakers.
Built for professional use, the cabinet features Baltic birch plywood construction, a hard-wearing polyurea finish, steel grille, integrated side handles and an M20 threaded pole mount.
Why Buy from Concert AV?
At Concert AV, we specialise in professional audio, visual and live production equipment for musicians, DJs, venues, production companies, installers and event professionals across Australia.
Key Features
- 18" professional active subwoofer
- 1400W peak / 700W RMS Class-D amplification
- Maximum SPL of 133 dB
- 35 Hz–120 Hz frequency response
- RCF Bass Motion Control excursion management
- Stereo XLR inputs and outputs
- Selectable crossover frequencies
- Volume, EQ, phase and crossover controls
- Thermal and RMS protection with soft limiter
- Baltic birch plywood cabinet
- Durable polyurea finish
- M20 threaded speaker pole mount
- Ideal for live music, DJs, venues, events and portable PA systems
Technical Specifications
Woofer: 1 x 18", 3" voice coil
Frequency Response: 35 Hz–120 Hz
Maximum SPL: 133 dB @ 1m
Amplifier Power: 1400W Peak / 700W RMS
Inputs: Stereo XLR, balanced/unbalanced
Outputs: Stereo XLR
Controls: Volume, EQ, Phase, Crossover
Protection: Thermal, RMS, Soft Limiter
Cabinet: Baltic birch plywood
Pole Mount: M20 thread
Dimensions: 693 x 505 x 685 mm
Weight: 40.6 kg