RCF USB 905 AS MK3. Active subwoofer with 15" wide-excursion woofer with ceramic magnets and 3" coil, 2200W of peak power in class D digital amplification, integrated DSP processing with digital display and control encoder, selection of crossover frequency and polarity presets and cardioid pattern and output delay settings, volume control, Bass Motion Control for managing the woofer excursion, Bal/Unbal input and output via XLR L/R
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