Studio engineer, producer and owner of The Magic Mix Room who learned from watching the work of Tom Dowd. Well-known for his work with hip-hop producer Timbaland in the recent years, but the work of "Senator Jimmy D" stretches back to the 1970s, when he worked with Otis Redding, Bette Midler, Hall & Oates, The Rolling Stones and more.

Why is the engineer is listed as Senator Jimmy D and the Mixer as Jimmy Douglass on some recordings? "When you’re mixing, you’re often off in the room by yourself but when you’re recording you have be a diplomat – It’s political! So when I’m engineering, I call myself Senator Jimmy D." -from a 2003 interview with Marsha Vdovin