The Akai GX-4000 D is a vintage reel-to-reel tape recorder manufactured by Akai in the 1970s. It was part of Akai's GX series and was designed for home recording. The GX-4000 D featured a two-speed (3.75 and 7.5 ips) direct-drive mechanism, providing high-quality tape playback and recording. It had two VU meters for monitoring levels and various control knobs for adjusting playback speed, recording bias, and equalization. The GX-4000 D also had features like auto-stop and electronic tape counter. It used 7-inch reels and had a maximum tape length of 1800 feet. The device was renowned for its durability and sound quality.
