The Akai GX-220 is a vintage reel-to-reel tape recorder introduced by Akai in the late 1960s. It is a two-track, two-speed (3.75 and 7.5 inches per second) machine that uses 7-inch reels. The GX-220 features a three-head configuration for recording, playback, and erasing. It also offers various playback options like reverse playback, pitch control, and sound-on-sound recording. The unit has separate left and right microphone inputs, line inputs, and line outputs for connectivity. The Akai GX-220 was popular among audio enthusiasts and recording professionals due to its high-quality sound reproduction and durability.