The QCH series employs the latest DUS AUDIO-developed Synergy Waveguide technology, successfully coupling radiation from multiple drivers into a single horn. This delivers the efficient performance of a single driver system, featuring high sensitivity, efficient power transfer, excellent directivity control, and serving as an ideal foundation for truly modular linear arrays. This coaxial synergy horn arrangement embeds the high-frequency driver within a larger horn, ingeniously utilizing the entire front baffle area as the horn, maximizing horn size and improving directivity control for lower frequencies (longer wavelengths). The QCH16 is a large-range, three-way (passive crossover built-in for mid and high frequencies) line array loudspeaker. By incorporating built-in passive crossover mode for mid and high frequencies, it effectively reduces user costs. The QCH16 is equipped with two high-power 8-inch low-frequency drivers handling frequencies below 500Hz. The mid and high-frequency section combines a high-efficiency 4-inch magnetic wafer, flat-diaphragm mid-range driver with a 1.75-inch high-frequency magnetic wafer compression driver, coupled into a 90° horizontal and 10° (adjustable in 1° increments) vertical coverage synergy waveguide horn, forming a synergy waveguide module covering the 50Hz to 20kHz frequency range. The enclosure is constructed from premium birch plywood with a high-strength, waterproof, and wear-resistant polyurea coating. The front of the loudspeaker is protected by high-quality coated steel mesh combined with breathable, waterproof mesh fabric. The exterior features four ergonomic handles, and a three-point balanced hanging accessory for connecting other products in the same series to achieve precise sound field positioning. The sound field's directivity depends on the number and angle of speakers and can be matched to the audience's geometric configuration. Through professional processor presets, it achieves perfect drive and protection via proprietary power amplifiers. The QCH16 speaker features a maximum output sound pressure level of 141dB SPL, providing ample power for audience areas within a 100-meter range. It meets the demands of large-scale mobile performances such as live rock concerts, EDM DJ music parties, variety shows, and corporate gatherings. Dus to its relatively compact size, the QCH16 can also deliver excellent sound effects when used as the main loudspeaker system in venues like indoor live houses, large dance clubs, and auditoriums.