Carl Martin efekte uporabljajo; Tim Pierce (Session Player),- Chris Chaney (Alanis Morrisette),- John Jorgenson,- Jerry Donahue,- Will Ray,- John Sebastian,- Billy Gibbons,- Peter Stroud (Sheryl Crow Band),- Mike Tempesta (Powerman 5000),- Scott Coney (George Jones),- Dan Vickerey (Counting Crows),- Eric Clapton,- Carlos Santana,- Andy Timmons,- Joe Bonamassa,- John Fogerty,- Dave Navarro,- David Williams (Michael Jackson),- Joe Perry,- Brad Paisley,- Bonnie Raitt,- Rusty Anderson (Paul McCartney band),-Steve Howe (Yes),- Keith Urban,- The Storys ,- The Happy Mondays,-Doug Wimbish,- Zoltan Bathory (Five Finger Death Punch),- Johnny Marr,- Bruce Welch (Shadows),- Richard Kruspe (Rammstein) & many many more.