Free Download Nion Roland U-220 Complete Sample Collection KONTAKT WAV | 7.63 GBThe U-220 RS-PCM sound module and its keyboard version, the U-20, were released in 1988/ 1989. They use RS-PCM to generate sounds. The U-220 has 64 factory patches, 128 timbres and 128 tones. Fifteen expansion cards were released at the time, containing 386 extra tones.