MXR Dyna Comp

The MXR Dyna Comp, introduced in 1972, is one of the most iconic compression pedals in music history. Designed by MXR Innovations, it was part of the company's original lineup alongside the Phase 90 and Distortion +. Known for its simplicity and effectiveness, the Dyna Comp features two controls: Output, which adjusts the overall volume, and Sensitivity, which governs the amount of compression. The pedal quickly became a favorite among guitarists for its ability to smooth out dynamics, add sustain, and enhance tonal clarity. Its distinct tonal coloration and "squash" effect have made it a staple for genres like country, funk, and rock.

Historical Development

Early Production (1972–1974): The first Dyna Comp models featured the "script logo" design and were housed in lightweight aluminum enclosures. These early versions used the coveted CA3080 IC chip, known for its warm and musical compression.
Block Logo Transition (1977): By 1977, MXR transitioned to a "block logo" design with heavier zinc enclosures. While circuit changes were minimal, collectors often prize script-logo models.
Dunlop Reissue (1987–Present): After MXR's closure in 1984, Jim Dunlop acquired the brand and reissued the Dyna Comp with modern updates like an LED indicator and a 9V power jack. Dunlop also released a '76 Vintage Script Reissue for purists.

Notable Players

The Dyna Comp has been used by numerous legendary guitarists:

David Gilmour (Pink Floyd): Used it to enhance sustain and smoothness in his solos.
Lowell George (Little Feat): Known for his slide guitar work with the Dyna Comp adding sustain and warmth.
John Frusciante (Red Hot Chili Peppers): Utilized it for clean funk tones on tracks like "Under the Bridge."
Andy Summers (The Police): Used it for rhythmic clarity on songs like "Walking on the Moon."

Popular Settings

The Dyna Comp's straightforward controls make it adaptable to various styles:

Classic Compression: Output at 12:00, Sensitivity at 2:00 for balanced sustain and dynamic control.
Funk Rhythm: Output at 10:00, Sensitivity at 60% to add pop and crispness to clean chords.
Lead Sustain: Output at 1:00, Sensitivity maxed out for soaring solos with smooth attack.

Legacy

The MXR Dyna Comp remains a cornerstone of guitar effects due to its versatility and distinctive sound. Its ability to tighten dynamics, enhance sustain, and add tonal sweetness has made it a go-to pedal for professionals across genres. With its enduring popularity, modern reissues ensure that this classic compressor continues to shape guitar tones worldwide.