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Our Thoughts RADAR AI

Unknown condition makes the price worth judging with a little care, but at US$60 this is a strong deal: it sits below the US$107 median and above the US$50 25th percentile in the 35-listing sample. Even allowing for age, that is bargain territory for a genuine RU-MX5 with its power supply.

This is a practical, quietly serious installation mixer rather than a domestic hi-fi curiosity. Four inputs accept mic or line signals, the fifth is line-only, and it offers switchable 24 V phantom power, balanced mic and line outputs, useful metering, and expansion through the mix input. The included supply removes the main accessory headache. Before buying, confirm it powers up cleanly, all level controls and meters respond, and the detachable terminal-block connectors are present; if so, US$60 is an easy recommendation.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Pro Audio Technology

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.

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