The Hitachi HA-300 is an integrated amplifier that was manufactured between 1975 and 1978 in Japan. It features a sleek black finish and was priced around 448 DM at the time of its release. The device is part of a series that includes other models such as the HA-330, HA-610, and HA-5300. The amplifier is designed to deliver high-quality sound and is often sought after by collectors and audio enthusiasts. Specifications typically include several input options, tone controls, and a robust power output suitable for driving various types of speakers. Its vintage appeal lies in both its aesthetic design and its performance capabilities, making it a notable piece in the integrated amplifier market of its era.