The Yamaha RM50 is a powerful 1990s rackmount rhythm sound module, essentially a rack version of the RY30 drum machine, using Yamaha's AWM2 (Advanced Wave Memory) 16-bit samples for realistic sounds with 16-note polyphony and 16-part multitimbrality, offering deep sound shaping via filters, layering, and extensive editing for 1100+ voices and 128 kits, expandable with ROM/RAM cards for more sounds and samples, serving as a versatile brain for electronic drum kits or a standalone sound source