JLM Audio is a Brisbane, Australia-based pro audio manufacturer founded by Joe Malone, a former Telstra senior technical officer who turned a sideline of repairing and cloning vintage studio equipment into a full-time business. Malone built a reputation servicing classic gear from Neve, Pultec, UREI, QuadEight, Telefunken, and others, and began designing his own circuits — including early LA-2A-style optical compressors and the JLM99v microphone preamplifier — when collecting the originals became impractical. The company's stated focus is on improving classic topologies with computer-aided design, modern regulated power supplies, and lower-noise components.

The product line centers on the API 500-series and rack formats, covering microphone preamps, EQs, and compressors, alongside outboard power supplies, transformers, op-amps, and a broad catalog of DIY kits and replacement PCBs aimed at the home- and project-studio builder community. JLM also sells modification parts intended to upgrade or repair vintage outboard. Distribution is split between direct sales from the Brisbane workshop and resellers such as Resistance Audio, who offer professionally assembled versions of the kits.

Malone's repair and front-of-house work has put JLM gear and service in the orbit of Australian acts including Powderfinger, Regurgitator, The Angels, Divinyls, and Tommy Emmanuel, and the brand is widely discussed in DIY audio communities such as Gearspace for its preamp and compressor designs.

JLM Audio has 2 products cataloged on Equipboard, including Effects Processors. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Deryck Whibley.