The Revox B 77 HS MK II is a reel-to-reel tape recorder produced by the Swiss company Revox. It is a high-end machine known for its excellent sound quality and durability. It features three motors for stable tape transport and precise speed control. The B 77 HS MK II supports both 1/4-inch and 1/2-inch tape formats and offers various playback and recording options, including stereo, mono, and track bouncing. It also has adjustable recording bias and equalization settings. The machine was manufactured in the late 1970s to early 1980s.

The Revox B 77 HS MK II is a reel-to-reel tape recorder produced by the Swiss company Revox. It is a high-end machine known for its excellent sound quality and durability. It features three motors for stable tape transport and precise speed control. The B 77 HS MK II supports both 1/4-inch and 1/2-inch tape formats and offers various playback and recording options, including stereo, mono, and track bouncing. It also has adjustable recording bias and equalization settings. The machine was manufactured in the late 1970s to early 1980s.