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Is US$380 still a buy once you factor in condition, or are you paying top-of-market? For this model, US$380 is on the ambitious side: recent asks I found sit around US$300–US$330, while completed/sales-style listings also show examples around US$150–US$200-equivalent, so this listing is not cheap by comparison. Without a stated condition, I’d want real evidence of service and cleanliness before treating US$380 as fair.
That said, this is a worthwhile vintage integrated if it’s healthy: the NA-690 is a respected late-1970s Nikko with a phono stage and about 45 watts per channel, which makes it appealing for efficient speakers and vinyl rigs. If it’s been serviced, has original cosmetics, and the controls are quiet, the upside is a solid, good-looking Japanese amp with enough charm and functionality to justify a premium; if not, the age-related service risk is the main thing to check.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Nikko Audio emerged from Nikko Electric Industry Co., founded in 1933 in Kanagawa, Japan, initially as a manufacturer of fuses and electrical equipment for the national railroad. Post-World War II, the company expanded into communications technology, entering the hi-fi market in the late 1960s through the influence of an audiophile family member with exceptional hearing. This Japanese heritage fueled a brief but notable run of precision-engineered audio components before the brand shuttered its audio division amid the 1990s market downturn.
The brand focused primarily on amplifiers, producing standout series like the Alpha line of power amps from the late 1970s and early 1980s, and the high-end TRM series, including the 1975 TRM-800 integrated stereo amplifier with its robust 65 watts per channel output, NEC power transistors, and stability down to 4 ohms. Tuners such as the FAM-600 and compact hi-fi gear rounded out their compact-form-factor offerings, emphasizing clean circuit design and no-frills power over expansive categories like speakers, turntables, or modern digital components.
Today, Nikko holds a cherished position among vintage collectors, prized for its build quality and dynamic sound that rivals contemporaries from more prominent Japanese marques. Though limited in distribution during its era, these components endure as attainable high-fidelity treasures, evoking the golden age of Japanese amplification engineering.
See all Nikko listings on RADAR.
