QSC E15 15-Inch Passive Speakers & GXD8 Power Amp

QSC E15 15-Inch Passive Speakers & GXD8 Power Amp

The E15 is a trapezoidal, 2-way loudspeaker using a 15-inch, 500W, die cast aluminum frame woofer with a 3.5" voice coil. It is intended for use when high-power and authoritative low-end are needed from a full-range loudspeaker. A 2.8 compression driver attached to the 75° DMTTM waveguide assures that even distant listeners will be well covered. E Series loudspeakers will perform very well with any quality, professional power amplifier - but by taking advantage of the complete QSC entertainment system, more performance and options are available. Today's powered loudspeakers rely on finely tuned digital signal processing (DSP) to achieve a higher level of performance. When used with QSC GXD or PLD amplifiers or with a QSC TouchMix digital mixer, E Series loudspeakers can also take advantage of advanced DSP. QSC has developed E Series DSP settings for all platforms. These settings support a variety of applications including live sound reinforcement (with and without subwoofers), stage monitoring, dance music and karaoke.

GXD Series amplifiers are ideal for entertainment and production applications requiring performance and the convenience of integral signal processing. The hallmarks of the QSC brand - professional audio quality, engineering and manufacturing focused on long-term reliability - are all intrinsic to GXD. 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. There's a GXD amplifier within 1dB of the ideal power for your speaker system.

The 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. Over 20 presets for select typical systems are provided as generic "starting points" are included. The 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 (4 ohm and 8 ohm) , and selecting whether Mild, Medium or Agressive protection is desired.

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 8 ohm. 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.

The 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. The 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 (4 ohm and 8 ohm) , and selecting whether Mild, Medium or Agressive protection is desired.

Hosa Professional Grade 14-Gauge Speaker Cables were designed by sound engineers with the audio professional in mind. Hosa Professional Grade cables send a clear, clean signal from your audio amplifier to your loudspeakers. Rugged black jacket.

• 500-watt continuous power
• Advanced digital signal processing tunings and options using QSC GXD amplifiers
• Titanium diaphragm
• Rugged tour-grade textured paint
• Foam-lined perforated steel grill
• Available U-Style yoke and M8 rigging kit for permanent installation
• Dual angle pole socket
• Frequency range: 59Hz - 20kHz (-10 dB)
• Coverage angle:75° conical
• Power capacity continuous/peak:500W / 2000W
• Sensitivity: 97dB, 1W @ 1m
• Output: peak SPL @ 1m - 131dB
• Driver LF: 15" (380mm) driver with 3.5" (76mm) voice coil
• Driver HF: 1.5" (38mm) exit, 2.8" (76mm) voice coil, compression driver
• Nominal Impedance: 8 ohms
• Cross-over: full-range only 1.55kHz
• Input connectors: (2) NL4 and (1) barrier strip
• Enclosure: Trapezoidal, plywood, black texture paint finish
• Dual side-mounted handles
• Perforated, powder-coated steel grille with foam lining
• Mounting and suspension: (6) M8 suspension points; dual angle, 35mm pole-socket
• Net weight: 68 lbs. (31 kg)
• Dimensions: 16.5" x 28.2" x 17.5" / 420mm x 716mm x 445mm

• Peak power: maximum peak power - 4500 watts; 8 ohms/channel - 800 watts; 4 ohms/channel - 1200 watts
• Class-D output stage with a universal power supply for high performance and efficiency
• Extensive and powerful loudspeaker processing built in
• Includes high & low-pass filters, 4-band PEQ, limiting, and delay
• Large LCD display simplifies amplifier setup and indicates amp status
• Inputs: parallel XLR and 1/4" TRS connectors
• Precision rotary encoders for gain and DSP parameter control.
• Outputs: Professional binding post and NL4 connectors (compatible with NL2)
• Digital limiting
• Adjustable speaker protection to match power and impedance
• Front panel LEDs indicate signal presence, input overload, and amplifier clipping
• Dimensions: 3.5" (2 RU) x 19" x 10.2" / 89mm x 483mm x 259mm
• Weight: 13.2 lbs.

• Neutrik Connectors
• Rugged Black Jacket
• 14 AWG X 2 Conductor