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At £45, this sits well below the £113 25th percentile and miles under the £151 median, so it reads as a strong bargain rather than a merely fair buy. For a vintage Integra 4000, that is the kind of asking price that leaves room for a recap, a service, or a bit of patience without spoiling the deal.
This is the sort of older amp that can be very rewarding if it’s complete and basically healthy: simple, era-correct, and appealing to anyone who likes vintage British hi-fi character. At this price, the main thing to check is the usual old-amplifier basics — output stability, hum, scratchy controls, and whether it powers up cleanly — because even a cheap one loses its edge if it needs major work.
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.
