RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
This is a deal: at US$150, it sits below the US$165 25th percentile and well under the US$180 median for recent comparable listings, so it looks like a genuine buy rather than a merely fair ask. Against the local asking-price spread, there’s enough cushion that a clean unit doesn’t need to be “perfect” to make sense.
The NA-790 is a solid late-era integrated amp to buy if you want straightforward, vintage Japanese amplification with enough reserve to sound lively and controlled in a normal system. The upside here is simple: if it powers up cleanly, switches quietly, and the controls are healthy, you’re getting a lot of amp for the money; just verify basic function and cosmetic honesty because age-related service items matter more than the brand name at this level.
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.
