The Echoplex EP-3 tape echo unit is famous for its deliciously warm, organic modulation and sweet musical voice—a key component to some of the most iconic guitar tones from the '70s onward. The original EP-3 units, however, are expensive, temperamental, and larger than a VCR. Original Echoplex units are among some of the most sought after piecesof guitar gear around. Renowned for their magical tones, Echoplexes produce warm, modulated delay repeats that gradually deteriorate over time. The Echoplex is a tape delay effect, first made in 1959. Designed by Mike Battle, [1] the Echoplex set a standard for the effect in the 1960s—it is still regarded as "the standard by which everything else is measured." [2] It was used by some of the most notable guitar players of the era; original Echoplexes are highly sought after.

Catalinbread's Belle Epoch Deluxe is perhaps the most highly-regarded Echoplex-style pedal out there. With a control-set that is very authentic to the dials found on original units, the thoughtful circuitry within the Belle Epoch Deluxe somehow replicates the distinctive repeats of the EP-3, and produces theunusual effects that couldbe attained when making drastic setting changes. All of that, without any real tape! Looping: A talk with Matthias Grob". Gibson News. Gibson Labs, Gibson Guitar Corporation. December 13, 2004. Archived from the original on June 22, 2011 . Retrieved January 7, 2011.Prown, Pete; Lisa Sharken (2003). Gear Secrets of the Guitar Legends: How to Sound Like Your Favorite Players. Hal Leonard. p.20. ISBN 978-0-87930-751-6.

Prown, Pete; Lisa Sharken (2003). Gear Secrets of the Guitar Legends: How to Sound Like Your Favorite Players. Hal Leonard. p.68. ISBN 978-0-87930-751-6. Battle's final consulting with Market yielded the EM-1 Groupmaster, which offered a four-channel input mixer section and a mono output section. Dissatisfied with the transistor-minded direction Maestro was taking, Battle left the company. [2] End of tape echo production and subsequent use of the brand [ edit ] Gibson Echoplex Digital ProYurochko, Bob (2001). A Short History of Jazz. Rowman & Littlefield. p.175. ISBN 978-0-8304-1595-3. Carr, Ian (1999). Miles Davis: the definitive biography. Thunder's Mouth Press. p. 261. ISBN 978-1-56025-241-2 . Retrieved 5 February 2010. Gress, Jesse (May 2009). "10 Things You Gotta Do to Play Like Randy Rhoads". Guitar Player. 43 (5): 98–105. That's where the EP103 Echoplex Delay comes in. It's the size of a Phase 90, and it delivers the EP-3's legendary tones with a simple control interface and a hi-fi all-analog dry path. The Delay control sets the time between repeats—from 65ms to 750ms—the Sustain control sets the number of repeats, and the Volume control sets the output level of your repeats. Gress, Jesse (February 2011). "10 Things You Gotta Do To Play Like Steve Miller". Guitar Player. pp.75–88.

a b Hunter, Dave (2004). Guitar effects pedals: the practical handbook. Hal Leonard. pp.77–78. ISBN 978-0-87930-806-3.Molenda, Mike; Les Paul (2007). The Guitar player book: 40 years of interviews, gear, and lessons from the world's most celebrated guitar magazine. Hal Leonard. p.187. ISBN 978-0-87930-782-0.