The superior amplification and powerful proprietary acoustic processing of the Mackie DRM215 15-inch powered loudspeaker make it a highly efficient solution for venues and houses of worship that demand uncompromised performance.The DRM215 represents decades of innovation in acoustic, DSP, and amplifier design. Combining extensive tuning, premium components, and cutting-edge DSP – DRM215 delivers breataking sound over a wide coverage area for both mobile and permanent install applications. The DRM Series is available in multiple point source configurations, line array, plus companion powered subwoofer.Mackie’s filtering technology is not your typical speaker processing. The goal of our Advanced Impulse™ DSP is to remove all the anomalies that loudspeakers and horns contribute to a signal, from “honkiness” or “squelch” to "mushy" low end, effectively making the drivers "invisible" and output nothing but perfect, clean sound. By more intelligently (and more thoroughly) employing the benefits of FIR filtering, Advanced Impulse DSP eliminates undesired acoustic anomalies across the entire dispersion zone (horizontal and vertical), as well as frequency range and time domain.Mackie Advanced Impulse DSPThe main way this is accomplished is by measuring the negative frequency response and time domain impacts that each transducer and horn in the system introduces – on axis as well as off – and reversing/correcting for those anomalies before the signal hits the speaker. The result is the output from the speaker is fully corrected for flat, clear, time-aligned, and smooth sound throughout the entire time, space, and response domainsnánar