The Alesis SR-18 Studio Drum Machine and ASP-1 MKII Sustain Pedal bundle pairs two high-quality music production tools. The SR-18 drum machine delivers 500 professional drum and percussion sounds with built-in effects for studio-quality sound. It includes 100 preset patterns by top studio drummers and space to store 200 custom user patterns. The SR-18's dynamic articulation technology enables sounds to change tone for realistic performances. This successor to the iconic SR-16 drum machine also features MIDI connectivity, pattern playback modes, and flexible power options. Complementing the SR-18, the ASP-1 MKII sustain pedal is a sturdy, portable pedal to control keyboards, synthesizers, and other instruments. Its polarity switch ensures compatibility, while the non-slip bottom keeps it secured during performances. With fast response times, the ASP-1 MKII expands expressive control over electronic instruments. Together, this Alesis bundle provides a professional-grade drum machine with quality sounds and extensive pattern customization paired with a reliable sustain pedal to unlock expressive performances. The versatile connectivity and power options of the SR-18 combined with the universal compatibility of the ASP-1 MKII make this an ideal production suite for songwriters, performers, and producers.