The Retro Model 2A3 Program Equalizer is a vintage-inspired, tube-based equalizer designed to deliver smooth, musical tone shaping with classic analog warmth. Drawing from legendary studio gear of the 1950s and ’60s, it features broad, overlapping frequency bands and carefully tuned curves that make it ideal for sweetening mixes, mastering, or adding depth and character to individual tracks. With its all-tube signal path and premium components, the 2A3 offers rich harmonic coloration and intuitive control, making it a go-to tool for engineers seeking timeless sound with modern reliability.