OWI 2X2AMPGRN1S61SVC is a self powered speaker/amplifier (AMP1SGRN) on a 2x2 metal tile and backcan assembly with volume control model AMPSTVCW. It is UL Listed, Energy Verified and Energy Star audio product. This unit can drive up to four speakers connected series parallel to have a net impedance of 8 ohms. With an included UL Listed, Level 5(Energy Star), 15V, 3.5A power supply, the amplifier can output 32 or 8W per speaker in a four speaker hook-up.
Self-powered "Green" speaker on a 2x2 metal tile
15V DC, UL listed, level 5 (Energy Star) rated power supply