Atlas Sound SD72WV Speaker - 15 W RMS - 25 W PMPOOverview Specifications The speaker used in the SD72WV is the next generation of Atlas high performance cone loudspeakers, very similar to the preceding C Series speakers. The similarity in the sonic qualities ensures that contractors and designers who have worked with the Atlas Sound C Series in the past will know exactly what to expect when they use the SD72WV. General Information Manufacturer Atlas Sound LP. Manufacturer Part Number SD72WV Brand