GLS Audio is a Southern California-based company that sells professional audio cables, microphones, and accessories using a factory-direct sales model. The brand built its reputation by offering budget-friendly alternatives to higher-priced industry standards, distributed primarily through its own website and online marketplaces like Amazon, Reverb, and eBay rather than through traditional music retailers.

The company's microphone lineup is anchored by the ES-58 and ES-57 dynamic mics, which are widely discussed in home-recording and live-sound communities as affordable stand-ins for the classic Shure SM58 and SM57. Beyond microphones, GLS Audio is best known for its bulk and pre-made cables — including XLR mic cables, balanced TRS patch cables, speakON speaker cables, and 1/4-inch instrument cables — along with adapters, snakes, and other connector hardware aimed at project studios, churches, schools, and gigging musicians.

GLS Audio has 4 products cataloged on Equipboard, including Dynamic Microphones and Instrument Cables.