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It is designed to produce crushing low frequencies during live performances with bass drum and bass in front or for the intense rhythms and energy characteristic of dance music. An M20 threaded socket and mounting pole are provided for sub-satellite deployment with any two-way E-Series model. For portable applications, it includes attachment points for four optional castors. The 4 ohm impedance of the subwoofer means that only one woofer can be optimally powered by a less expensive amplifier.
The E Series speakers deliver optimum performance with any professional quality power amplifier, but more performance and options are available by leveraging the entire E Entertainment System series. Current amplified speakers rely on calibrated digital signal processing (DSP) to achieve even better performance. When used with QSC GXD or PLD amplifiers or with a QSC TouchMix digital mixer, the E Series speakers can also take advantage of advanced DSP settings. QSC has developed E-Series DSP parameters for these three platforms. These settings are compatible with many applications, including live sound (with or without subwoofer), stage returns, dance music performances and karaoke.