The DSP100-1-CV-D is an affordable amplifier with fully integrated DSP designed to optimize the speakers and overcome the acoustical limitations of a zone. The DSP100-1-CV-D provides 100W audio power @ 70/100V. The robust, full function DSP includes a full cross-point mixer, EQ, filters, limiters, and more. A USB port makes programing simple, fast and repeatable for large installations. The remove volume control operates with a wide range of devices. You won't find a more cost effective way to bring outstanding sound quality to a zone on the market today.