RCF SUB 705-AS MK3 15-inch 1,400-watt Active Subwoofer

RCF SUB 705-AS MK3 active 15-inch subwoofer

RCF SUB 705-AS MK3 active subwoofer is engineered for professional live sound reinforcement where deep, powerful, and controlled low-frequency output is required. It features a 1400W peak Class-D amplifier that delivers high sound pressure levels with efficiency, low heat generation, and fast transient response, making it suitable for DJs, bands, and portable PA systems in small to mid-sized venues.

The system is equipped with a 15-inch high-power woofer in a bass reflex enclosure, designed to produce strong and impactful bass with excellent extension and clarity. With a maximum SPL of up to 131 dB, it provides significantly increased low-end performance, especially when paired with 10-inch or 12-inch full-range speakers.

Advanced DSP processing includes electronic equalization, soft limiting, polarity reversal, and adjustable crossover settings, allowing precise system tuning based on venue and application needs. Bass Motion Control technology enhances woofer excursion management, ensuring tight, distortion-free bass reproduction even at high output levels.

The rear panel provides flexible control options including stereo XLR inputs and outputs, volume control, EQ adjustment, phase switching, and crossover selection for seamless integration into professional audio systems.

The cabinet is built from rugged Baltic birch plywood with a scratch-resistant polyurea coating for maximum durability during touring use. Ergonomic side handles ensure easy transport, while the M20 threaded pole mount allows secure mounting of satellite speakers. Front-firing bass reflex ports improve efficiency and allow flexible placement, even in tight or recessed spaces.

SUB 705-AS MK3 delivers powerful low-frequency reinforcement with professional reliability, making it an ideal choice for portable and installed sound systems requiring high output and precision bass performance.

Features of SUB 705-AS MK3

• 1400W high-efficiency Class-D amplifier
• Maximum SPL up to 131 dB for powerful bass output
• 15-inch high-power woofer in bass reflex design
• Deep and controlled low-frequency reproduction
• Stereo crossover system with selectable settings
• Adjustable crossover frequencies for system tuning
• Polarity reverse switch for phase alignment
• Bass Motion Control for optimized woofer excursion
• Electronic equalization with soft limiter protection
• Stereo XLR input and output connectivity
• Rugged Baltic birch plywood cabinet construction
• Scratch-resistant polyurea protective coating
• Ergonomic side handles for easy transport
• M20 threaded pole mount for satellite support
• Front-firing bass reflex ports for flexible setup

Specifications of SUB 705-AS MK3