Vintage and rare effects unit, a dedicated reverb machine. This is a very simple analog effects unit with only knobs, and it can be rack-mounted. I confirmed it powers on and works by connecting a guitar and hearing the reverb. It produces a powerful and thick sound quality reminiscent of the good old days (this is just my personal impression). This is a valuable digital reverb unit from KORG with a variety of reverb patterns. The exterior has no major damage, but please be aware that there may be some minor scratches. Please refer to the photos. - Brand: KORG - Model: DRV-1000 - Type: Digital Reverb - Controls: Level, Mix, Pattern Select - Patterns: Small Hall, Medium Hall, Large Hall, Cover, Vocal Plate, Studio Reverb #EffectPedal #Reverb #ElectricGuitar #RackMount #Digital #Korg #KORG