Yamaha TSX20 Tabletop CD Mini System (Discontinued by Manufacturer) 18 watts per channel with 63 to 27,000 Hz frequency range Module sits level on bookshelf, at 20- or 45-degree angle, or mounted on a wall Compatible with CD-R/RW formats and includes 1-bit D/A converter Minijack auxiliary input, optical digital CD output, and subwoofer output Measures 5 by 9 by 5-3/4 inches (width by height by depth)