iKEY Audio is a pro audio brand that operated as a division of GCI Technologies (formerly Gemini Sound Products), headquartered in Edison, New Jersey. Founded by the Cabasso family — who established Gemini Sound Products in 1974 — the iKEY brand was formally recognized in 2006 when the parent company restructured under the GCI Technologies umbrella, an acronym representing its three divisions: Gemini, Cortex, and iKey.

The brand built its reputation around portable digital recording devices and studio monitors. Its product line included the iKey Plus portable USB recorder, which could record MP3 and WAV files directly to an iPod or USB storage device, and the HDR7 handheld field recorder featuring X/Y condenser microphones and a color LCD screen. The rackmount RM-3 targeted permanent installations such as clubs, houses of worship, and lecture halls. On the monitoring side, iKEY Audio offered the M-Series of bi-amplified active studio monitors — the M-505 (5-inch, 75W), M-606 (6.5-inch, 90W), and M-808 (8-inch, 125W) — along with the M-10S subwoofer. The lineup also included the iConnex USB sound card, designed primarily for DJs and vinyl transfer, and the Eardrumz in-ear monitors.

The iKEY Audio brand is no longer actively marketed, with its former website domain (ikey-audio.com) now parked. Products from the line are available primarily through the secondhand market. The parent company continues to operate under the Gemini Sound name.

iKEY has 1 product cataloged on Equipboard, including Active & Passive Monitors.