The black QSC E112 is a trapezoidal, two-way loudspeaker, well suited for sound reinforcement applications including live performance, DJ and dance music, karaoke, and event production. The E112 requires an amplifier with a minimum of 400W continuous (1600W peak) to power the 12" woofer and 1" compression driver that combine to offer a frequency response of 64 Hz to 20 kHz (-6 dB) with a peak SPL of 128 dB. QSC recommends the use of a DSP speaker processor or a power amplifier with integrated DSP in order to set crossovers, limiting, and equalization to ensure the best performance. QSC's GXD or PLD amplifiers, as well as TouchMix digital mixers offer on-board DSP and factory-tuned presets, which provide settings for live sound reinforcement (with and without subwoofers), stage monitoring, dance music, and karaoke.





The 15mm, 11-ply enclosure provides a direct-match-transition (DMT) coverage angle of 85°, which is suitable for most medium and medium-to-long-throw applications. An all-metal, dual-angle, 35mm socket allows the loudspeaker to be mounted vertically on a pole or angled down by 10° to improve audience coverage and reduce rear wall reflections. Multiple mounting options using E Series Yoke or M8 eyebolts (sold separately) are supported. Input connections include dual NL4 as well as screw terminal receptacles.The GDX 8 from QSC is a professional power amplifier designed for professional PA systems utilizing speakers with 4 and 8 ohm loads and a maximum output of 4500W. The GDX 8 employs a class D output stage with a universal power supply for high performance and efficiency, while keeping the unit lightweight at 13.2 lbs. The integrated DSP section includes High and Low-Pass filters (24 dB LR), 4-band parametric equalizer, signal alignment delay, and RMS/Peak speaker protection limiting.





The parallel XLR and 1/4" TRS input connectors offer broad compatibility with convenient loop-through capabilities, while the professional binding posts and NL4 connector provide mono and bi-amped speaker connections. In addition to the limiting offers on the inputs and outputs, the GDX employs smart speaker protection by providing settings for the loudspeaker's continuous output and impedance (4 ohm or 8 ohm). The GDX 8 ships with a standard IEC power cord.