The Sony DRE Series comprised two high-end digital reverberation systems that demonstrated Sony’s expertise in professional signal processing. The first, the DRE-2000, released in 1981, was an early digital reverb renowned for its smooth, natural sound and extensive remote control capabilities, quickly becoming a fixture in top studios and broadcast facilities. Nearly two decades later, Sony introduced the DRE-S777, a groundbreaking convolution reverb that used sampled impulse responses of real spaces to create ultra-realistic acoustic environments. Together, the DRE-2000 and DRE-S777 bookend Sony’s digital reverb innovation, from early algorithmic design to true sampled-space realism, making the DRE Series one of the most advanced and influential reverb lines ever produced.