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New, the PM8500N was a roughly US$4,998 professional amplifier, with some current dealer listings around US$1,625 for new or open-box stock. At US$1,500, this tested unit is far above the broader used-listing median of US$125 and 75th percentile of US$236, so it is an ambitious price unless it includes unusually strong provenance, warranty, or installation support.
The hardware itself is serious: eight configurable Class-D channels, up to 500 watts per channel at 4 ohms, network control, DSP integration, and the flexibility to handle low-impedance or 70/100-volt systems. The cables and manual help, and “tested working” is worthwhile for a complex commercial amplifier, but they do not by themselves justify this premium. A buyer should want a clean serial number, confirmed network/control operation, and a meaningful return period; otherwise, negotiating substantially below US$1,500 makes more sense.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Bose Corporation traces its roots to 1964, when MIT professor Amar Gopal Bose founded the company in Natick, Massachusetts, after growing disillusioned with the poor performance of a high-end stereo system he purchased as a graduate student. Driven by a passion for replicating the immersive qualities of live music through rigorous acoustic research, Bose launched the venture with initial contracts for the U.S. military and NASA, emphasizing innovative speaker designs that prioritized indirect, reverberant sound over direct radiation. This American heritage, rooted in psychoacoustics and engineering excellence, has defined the brand's pursuit of "Better Sound Through Research."
Bose excels in consumer and professional audio categories, renowned for its home audio systems, premium speakers like the iconic 901 Series, and pioneering noise-canceling headphones first prototyped in the 1980s for pilots. The lineup extends to vehicle sound systems, portable Bluetooth speakers, and professional installations, but steers clear of niche hi-fi components such as amplifiers, turntables, DACs, or cables, focusing instead on integrated, user-friendly solutions that blend advanced signal processing with spatial audio reproduction.
Positioned as a premium mid-tier powerhouse in the global market, Bose commands widespread appeal among discerning buyers seeking accessible high-performance audio without audiophile esoterica. Its reputation for innovation and reliability has built a loyal following, though purists occasionally critique its measured sound signature, cementing Bose as a dominant force in mainstream hi-fi rather than high-end boutique or vintage realms.
See all Bose listings on RADAR.
