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RCF Sub 708-AS MK3 Active subwoofer
The RCF Sub 708-AS MK3 Active subwoofer 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.
The RCF Sub 708-AS MK3 Active subwoofer is 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 RCF Sub 708-AS MK3 Active subwoofer is perfect for small to mid-sized venues and portable applications.
- 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
Power That Moves
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
- POLARITY REVERSE
- OUT SIGNAL, LINE / HIGH PASS
Bass Motion Control
When searching for an extended bass with enhanced performance, RCF engineers found a way to remove the high-pass filter, replacing it with a forward-thinking approach. Introducing BMC (Bass Motion Control), the newly advanced woofer excursion management feature. The speaker equipped with BMC can handle the lowest audible frequencies without affecting the woofer stability, with extended linearity and better sound integrity.
The BMC method works by creating a complete map of the dynamic behavior of the woofer, to generate a custom algorithm that only limits over-excursions. This gives total freedom of signal reproduction to the transducer. When high-pass filters normally protect the woofer motion from becoming destructive but change the phase behavior, the new BMC algorithm breaks conventional rules.
The BMC method works by creating a complete map of the dynamic behavior of the woofer, to generate a custom algorithm that only limits over-excursions. This gives total freedom of signal reproduction to the transducer. When high-pass filters normally protect the woofer motion from becoming destructive but change the phase behavior, the new BMC algorithm breaks conventional rules.
Specifications
- Frequency Response: 35 Hz – 120 Hz
- Max. SPL @ 1 m: 133 dB
- Woofer: 18″, 3″ voice coil
- Input Signal: Balanced/unbalanced
- 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, Crossover
- Total Power: 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: Yes
- Grille: Steel with clothing
- Colour: Black
-
Dimensions:
- Height: 693 mm (27.28 inches)
- Width: 505 mm (19.88 inches)
- Depth: 685 mm (26.97 inches)
- Weight: 40 kg (88.18 lbs)
$540.21
Original: $1,543.47
-65%RCF Sub 708-AS MK3 Active subwoofer—
$1,543.47
$540.21
Description
The RCF Sub 708-AS MK3 Active subwoofer 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.
The RCF Sub 708-AS MK3 Active subwoofer is 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 RCF Sub 708-AS MK3 Active subwoofer is perfect for small to mid-sized venues and portable applications.
- 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
Power That Moves
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
- POLARITY REVERSE
- OUT SIGNAL, LINE / HIGH PASS
Bass Motion Control
When searching for an extended bass with enhanced performance, RCF engineers found a way to remove the high-pass filter, replacing it with a forward-thinking approach. Introducing BMC (Bass Motion Control), the newly advanced woofer excursion management feature. The speaker equipped with BMC can handle the lowest audible frequencies without affecting the woofer stability, with extended linearity and better sound integrity.
The BMC method works by creating a complete map of the dynamic behavior of the woofer, to generate a custom algorithm that only limits over-excursions. This gives total freedom of signal reproduction to the transducer. When high-pass filters normally protect the woofer motion from becoming destructive but change the phase behavior, the new BMC algorithm breaks conventional rules.
The BMC method works by creating a complete map of the dynamic behavior of the woofer, to generate a custom algorithm that only limits over-excursions. This gives total freedom of signal reproduction to the transducer. When high-pass filters normally protect the woofer motion from becoming destructive but change the phase behavior, the new BMC algorithm breaks conventional rules.
Specifications
- Frequency Response: 35 Hz – 120 Hz
- Max. SPL @ 1 m: 133 dB
- Woofer: 18″, 3″ voice coil
- Input Signal: Balanced/unbalanced
- 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, Crossover
- Total Power: 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: Yes
- Grille: Steel with clothing
- Colour: Black
-
Dimensions:
- Height: 693 mm (27.28 inches)
- Width: 505 mm (19.88 inches)
- Depth: 685 mm (26.97 inches)
- Weight: 40 kg (88.18 lbs)
