The Edirol MA-15D stereo multimedia speakers are designed for accurate sound reproduction, especially when used as studio monitors. Designed to be used as monitors, the MA-15D are will more accurately reproduce sound with little coloration, as opposed to many multimedia speakers that have a frequency response tuned to please the listener. Retailing for around $179 (MSRP $220), these powered speakers deliver 15 Watts of power per channel, and have a multitude of input options. There are two independent input source channels with 4 input options including: 1) 1/8" stereo analog, 2) RCA stereo analog, 3) digital coaxial, and 4) digital S/PDIF optical.