The Akai D-9000 is a digital audio tape recorder (DAT) that was released in the 1990s. It is designed for professional use and offers high-quality audio recording and playback capabilities. The D-9000 features a robust construction and advanced technology, including built-in DSP effects, digital mixing, and editing functions. It supports various sample rates and word lengths, allowing for versatile recording options. However, specific details about its specifications and features are not available.