The Sanyo Plus E-55 is a timer model produced by Sanyo as part of the Plus series, manufactured between 1979 and 1981 in Japan. The device features a sleek design characterized by a combination of silver and black colors. It was originally priced at approximately $250 or 800 DM. The E-55 served as a timer component within various audio systems, potentially functioning in sync with other components like amplifiers and record players. It is commonly associated with an integrated setup that includes the Sanyo Plus A-35 amplifier, C-55 preamplifier, P-55 power amplifier, T-35 and T-55 tuners, along with a range of tape decks and record players. This timer is part of a legacy of audio products that aimed to offer functional efficiency and durability in sound systems during its production run.