RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
At A$300, this sits above the median used ask of A$156, but well below the A$1,618 75th percentile, so it reads as a reasonable buy rather than a standout bargain. Compared with the obvious alternative of spending more on a newer amp or rolling the dice on a cheaper no-name power stage, this is squarely in the “pay a bit more for a known quantity” zone.
The GX5 line is a solid, workmanlike PA amplifier: plenty of clean power for live sound, DJs, rehearsal rooms, or a modest home rig, with the kind of rugged pro-audio build that usually just keeps going. If it’s genuinely clean and fully working, the upside is a dependable two-channel amp from a respected pro brand at a price that’s still sensible in today’s used market.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Pro Audio Technology, known as PRO, traces its origins to 2004 when founder Paul Hales, a veteran of QSC Audio, established Professional Home Cinema, LLC in the United States. Hales aimed to bring genuine professional-grade audio into residential spaces, revolutionizing surround sound with loudspeakers and DSP amplifiers designed for high-end home theaters. In 2010, the company rebranded to Pro Audio Technology to align with its evolving strategic vision, while retaining its core focus on installed systems.
The brand specializes in professional-style loudspeakers and DSP amplifiers/processors tailored for residential custom installations. These components emphasize scalability, precision, and integration, often forming complete systems for immersive audio. PRO later expanded through its sister company, Theory Audio Design, adapting PRO technology for broader home audio applications without venturing into consumer categories like headphones, turntables, DACs, or cables.
PRO holds a niche boutique position in the high-end market, favored by A-list celebrities from the movie and music industries, sports figures, and global leaders for their private screening rooms. Its reputation rests on delivering pro-audio performance in domestic settings, prioritizing reliability and sound quality over mass-market appeal, making it a discreet choice for discerning buyers seeking uncompromising installed systems.
See all Pro Audio Technology listings on RADAR.
