The E215 is a trapezoidal, two-way loudspeaker featuring dual 15-inch 500 W (continuous) die-cast aluminum frame woofers with 3.5-inch voice coil. It employs a Frequency-shading topology across both woofers to maximize low frequency output, while minimizing interference through the HF crossover transition. It is intended for use when high-power and extended low-end are needed from a single full-range loudspeaker. A large format 2.8" compression driver attached to the 75° DMTTM waveguide assures that even distant listeners will be well covered. The 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 QSC's proven "Systems" methodology, the E Series loudspeakers' performance is further enhanced when paired with QSC's GXD or PLD amplifiers 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.