Robert Honablue

U.S.-based recording and mastering engineer.
Owner of a studio called Natural Sound in 1974, located on West 29th street, NYC. Later alongside George Benson, they ran a studio called Triangle Recording Studios, in the Bronx, in George Benson's garage.

Hornablue's characteristic engineer's mark is a cursive lower-case "rlh" (easily misread as reh): see Images.