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Is US$250 a fair price for a used Integra ADM 20.4, or are you paying a premium for unknown condition? Based strictly on your database of three recent USD listings, the median asking price is US$225, with the 75th percentile at US$237, meaning this US$250 listing sits clearly above the top quartile and is ambitious for an amplifier with unspecified condition. You are paying roughly US$25 over the median and US$13 above the 75th percentile, which demands confidence in the unit's health or original-owner pedigree to justify the upside.
The ADM 20.4 remains a respected two-channel stereo power amplifier delivering 75 W/ch at 8 ohms with excellent 110 dB signal-to-noise and low 0.08% distortion, making it a solid choice for critical listening when paired well. At US$250, however, this is only a worthwhile buy if the unknown condition turns out to be clean, original, and fully functional; otherwise, the price offers little margin for risk compared to the US$220–US$225 range where better-condition units typically appear.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Integra traces its roots to 1969, when Japanese audio pioneer Onkyo launched the brand to showcase its most prestigious electronics, emphasizing integration and fusion in high-performance systems. Evolving from a premium label under Onkyo, it became an independent division in 1999 or 2000, targeting custom installers with gear optimized for seamless home automation. Today, under the Premium Audio Company—recently acquired by Gentex—Integra maintains its Japanese heritage while expanding accessibility beyond specialist networks.
The brand specializes in premium AV receivers, processors, and home theater components, including multi-channel amplifiers like the DRX 5.4 with 120W power output per channel. Its lineup features CD, DVD, and Blu-ray players, all engineered for advanced integration via the proprietary Integra Serial Control Protocol (ISCP). Integra prioritizes expandability, multi-zone capabilities, and smart home compatibility over standalone speakers, turntables, DACs, headphones, or cables.
Positioned as a high-end choice for discerning custom integrators and home theater enthusiasts, Integra commands respect for its world-class build quality, innovative control features, and benchmark-setting performance. No longer confined to niche channels, it now appeals directly to knowledgeable buyers seeking robust, future-proof systems that rival the best in the industry.
See all Integra listings on RADAR.
