The Roland DC-50 is a guitar effects unit featuring Hall Echo and Chorus functions. It's a chorus unit released in the late 1970s. Although "Digital" is in the name, it actually uses an analog BBD (Bucket Brigade Device) chorus, and is characterized by the rich, warm chorus sound typical of Roland at the time. Rich Chorus Effect I think it has a deep, swaying feel and thick sound, typical of Roland in the 70s. 【Specifications】 ■Type: Chorus/Echo (Chorus + Hall Echo) Unit ■Effect Method: Analog BBD (Roland's unique circuit design) ■Controls: ・Chorus Intensity (Chorus strength) ・Hall Echo (Reverb/Echo level) ■Power: AC100V - Model Name: DC-50 - Brand: Roland Operation confirmed, with no noticeable exterior damage and in good condition. I didn't notice any particular noise with my ears. Please understand that this is a no-claims, no-returns sale. Thank you for viewing.