S2-STAND ACTIVE LINE ARRAY SYSTEM The S2-MD is the ideal choice when line array performance is needed and a fast and easy set-up a must. A RMS 200 Watts 2-channel class-D amplifier powers the system. A powerful DSP processes the sound including crossover, phase correction, limiting and protection. The system features state-of- the-art Listen-Acoustic's transducers – two powerful 6.5” woofers for a solid bass reproduction plus a high powered compression driver mounted on a precise 100° x 10° waveguide delivers vocal clarity with high definition and an incredible dynamic. The S2-210D is the ideal flyable bass complement for the S2-MD array system.