Universal audio founder Bill Putnam Sr. introduced the 610 modular amplifier preamp in the early '60s, it was a milestone in audio recording history. The 610 became famous among record producers for its startling harmonic detail, and rich clipping characteristics, and its ability to overdrive in a warm, ultra-musical fashion. The original 610-A preamp was integral to countless legendary recordings — from the Beach Boys’ Pet Sounds and Johnny Cash’s At Folsom Prison. Its modern variant, the 610-B, helped to create new classics by Adele and Cold War Kids. Today, you can add the same tube presence, warmth, and body to vocals, guitars, bass and more with the UA 610 Tube Preamp & EQ Plug-In Collection for UAD-2 and Apollo interfaces. The UA 610 Collection represents the first comprehensive modeling of the legendary 610-A tube preamp and its modern variant, the 610-B — including their tube and transformer components and all of the unique distortion characteristics of the originals. The 610-A is modeled on a channel from the storied Wally Heider "Green Board," used to record Neil Young, Ray Charles, Elvis Presley and Jimi Hendrix, and offers simple 10 kHz high-shelf and 100 Hz low-shelf EQ. The modern 610-B offers selectable input impedance, adjustable high- and low-shelf EQ, and expanded gain range. the UA 610 Preamp & EQ Collection blurs the lines between analog and digital, UAD-2 and Apollo 16 owners can use the UA 610 Collection for mixing.