The QM-1000AS sub bass enclosure contains 1 x 650 watt RMS mono bass amplifier, 2 x powerful 200 Watt RMS at 8 ohms or 2 x 300W at 4 ohms, independently accessible satellite amplifiers, a system controller, adjustable crossover and a multiplicity of system configuration options. The QM-1000AS plus two QM-108 mid/high or 2 x QMDC 10 speakers, make a great full-range system to achieve professional results for full range high output in medium-sized venues and for small band or DJ. Or for larger shows, add 2 powered satellite speakers to the system and use the internal amplifiers to run two channels of independent fold-back. Alternatively the QM 1000AS can power up to any four passive speakers as a mixture of front of house and/or fold-back in either full range or crossover output mode. A pair of QM 1000 bass modules will give you a total of 4 extra amplifiers you can configure for many combinations of fold-back and front of house configurations. A 35 mm pole mount socket and two side handles completes the package and optional dolly carts and transit covers are available.