The Onkyo SX-100 is a speaker model that was manufactured between 1988 and 1989 in Denmark. It features a black finish and was originally priced at approximately 295 DM per piece. The SX-100 is part of the Onkyo Midi-70 system, which includes other components such as integrated amplifiers, tuners, CD players, and tape decks. Designed to match the other components of the Midi-70 series, the Onkyo SX-100 is well regarded for its quality sound reproduction, making it a suitable option for various audio setups. The series' compatibility with different types of audio equipment allows for versatile usage in home audio systems.