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RCF SUB 708-AS MKII 18" Active Subwoofer

RCF SUB 708-AS MKII 18" Active Subwoofer

Regular price $1,499.00 USD
Regular price Sale price $1,499.00 USD
Sale Sold out

The SUB 708-AS MKII 18" Active Subwoofer from RCF is a compact and powerful bass reflex subwoofer. It is equipped with a 18" high power woofer with 3" voice coil, powered by a 1400W digital amplifier in robust plywood housing for a powerful bass. Thanks to the built-in DSP digital stereo crossover with adjustable crossover frequency, it can be easily set up with a satellite speaker.

The subwoofer is equipped with 1400W digital amplifier that produces a very high output, low distortion, and natural sound. The amplifier features a solid mechanical aluminum structure which not only stabilizes the amplifier during transportation but also assist in the heat dissipation. The input board includes stereo XLR Inputs (balanced/unbalanced), stereo XLR Link/Xover outputs, volume control, Xover switch, phase switch. The 3 status LEDs – limiter / signal / status are provided for monitoring the system.

Two ergonomic recessed handles are positioned on the sides of the speaker. Thanks to the integrated steel pole mount, the subwoofer can be easily combined with another speaker. The use of steel instead of plastic makes the whole system particularly reliable and robust, thus allowing to choose a heavier monitor without the risk of damage.

1400W digital amplifier
18" woofer, bass reflex housing
Stereo crossover
Switchable crossover frequencies
Phase-reverse switch
Electronic equalization, soft limiter, and protection
Stereo XLR input, Stereo XLR signal output
Applications: Club sound, DJs, portable PA, rental, small theatre
Configuration Active Subwoofer
Enclosure Type Subwoofer
Total Power Capacity 700 W RMS
1400 W Peak
Amplifier Class Class-D
HF Driver None
MF Driver None
LF Driver 1 x 15" / 381 mm Inverted Woofer
LF Voice Coil 3" / 76.2 mm
Frequency Response 40 Hz to 120 Hz
Maximum SPL 131 dB
Input Sensitivity -2 dBu
Protections RMS, Thermal
Audio I/O 2 x XLR 3-Pin Female Balanced/Unbalanced Link Input
2 x XLR 3-Pin Male Balanced/Unbalanced Link Output
Network I/O None
USB None
Wireless Connectivity None
Signal Processing
Crossover Low-Pass:
80 Hz
100 Hz
EQ Yes
Parametric EQ None
Semi-Parametric EQ None
Filters High-Pass:
110 Hz
80 Hz
Dynamic Processing Soft Limiter
Alignment Delay None
Phase Adjustment Yes
AC Input Power 115 to 230 VAC, 50 / 60 Hz 
AC Power Connector 1 x VDE Input
Mounting 1 x 1.4" / 35 mm Pole Socket (Top)
Handles 2 x Side
Construction Material Plywood
Dimensions to 22.316.9 x 22.3" / to 429.3 x 566.4 mm
Weight 63.1 lb / 28.6 kg


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22.316.9 x 22.3"

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