Check the listing for details. Kawai Sound Chip R-100 Drum Machine. Condition: Used. Listed at 39.00 USD. With its advanced sound capabilities and intuitive interface, this drum machine allows users to easily create complex and professional-quality drum patterns for various music styles. Ideal for both studio recording and live performances, the Kawai Sound Chip R-100 is a top choice for anyone looking to enhance their musical capabilities and unlock their creativity in the realm of electronic drums.