QSC E110 Series System 
E10 x2The E10 is a compact, two-way loudspeaker featuring a 10-inch, die-cast frame woofer with a 2.5-inch voice-coil housed in a multi-purpose enclosure that is equally at home in stage monitor or main PA deployment. It incorporates Directivity Matched Transition (DMT) design with a wide 85° coverage and can handle 300 W continuous power. When used as a stage monitor, the E10 is angled up at a 55° angle allowing it to be placed near the performer when used on a crowded stage.E Series LoudspeakersThe E Series is a range of passive loudspeakers offering robust construction, trusted reliability and overall sonic performance beyond expectations. Intended for sound reinforcement in entertainment applications including live performance, DJ and dance music, karaoke and event production, E Series loudspeakers will deliver outstanding results. Building on the proven, QSC "Systems" methodology, the E Series loudspeakers' performance is further enhanced when paired with QSC GXD or PLD ampli ers or with a QSC TouchMix digital mixer, and taking advantage of the on-board DSP and factory-tuned presets. These presets support a variety of applications including live sound reinforcement (with and without subwoofers), stage monitoring, dance music and karaoke.E Series consists of six models constructed of rugged plywood and coated in black, textured paint. Heavy-duty grilles lined with foam provide protection for the woofers and an elegant appearance. E110, E12 and E15 models are equipped with an all metal, dual-angle, 35 mm socket that allows the speaker to be mounted vertically on a pole or angled down by 10° to improve audience coverage and reduce rear wall re ections. Multiple mounting options using E Series Yoke or M8 eyebolts are supported. Input connections include dual NL4 as well as screw terminal receptacles. Additionally, E215 and E218sw models feature ergonomic, aluminum handles to ease portability.GDX4As part of the E Series Entertainment System, the GXD amplifiers are ideal for entertainment and production applications. With integral signal processing and outstanding performance, the GXD amplifiers express all the hallmarks of the QSC brand - professional audio quality and long-term reliability. Add contemporary styling, multiple routing options, light weight, digital signal processing and advanced protection circuitry, and the GXD Series clearly represents real value - something everyone can use.The GXD series is optimized for use with 8 and 4 ohm loudspeaker loads. GXD amplifiers deliver just the right amount of power to the most popular speakers used by entertainers and production professionals.The Right PowerThere's a GXD amplifier within 1dB of the ideal power for your speaker system.Best practice is to use an amplifier capable of delivering approximately twice the loudspeaker's rated power capacity. Too little amplifier and the speakers won't deliver everything they're capable of and the risk of destructive amplifier clipping is increased. Too much power probably means unnecessary amplifier expense.To determine the power points for the GXD series, QSC examined the loudspeakers most widely used for sound reinforcement by musicians, DJs and production professionals. Overall, these speakers are equipped with woofers that fall into a couple of categories of continuous power capacity - low-power drivers that can handle 150 - 250 watts, and mid to high-power drivers rated around 250-400 watts. Single woofer loudspeaker systems using these drivers will typically have an impedance of 8Ω. Dual woofer loudspeakers will, of course, have power ratings that are two times that of the single woofer model and an impedance that is half that of single-woofer models.Digital Signal ProcessingThe GXD amplifiers are unlike other amps in this category that provide little more than a front panel screen to control the same functions that have been under rear-panel, DIP switch control for decades. The GXD amps bring full-function loudspeaker processing capability to a new price point with all the processing necessary to get the most from a loudspeaker system. The DSP section includes High and Low-Pass filters (24dB LR), 4-band parametric equalizer, signal alignment delay, and RMS/Peak speaker protection limiting. Twenty presets for selected typical systems are provided as generic "starting points" are included. To further prove the point, the GXD amplifiers come pre-loaded with QSC E Series loudspeaker tunings, enabling a simple connect and play system that maximizes the performance of the system.Digital LimitingThe most common cause of loudspeaker failure is amplifier clipping. The digital limiter used in the GXD amplifiers is set to prevent the amplifier from being driven into clipping while delivering the maximum usable output. In addition to amplifier limiting it also provides smart speaker protection by simply setting the loudspeaker's continuous power and impedance (4Ω and 8Ω), and selecting whether Mild, Medium or Agressive protection is desired.