Are you specifically chasing the Jungson’s unusual Class A presentation, or simply shopping for power at this level? At USD 2,750, this is clearly ambitious: the three recent comparables center at USD 1,500, with the 75th percentile at USD 2,125. Unless this is an exceptional, fully documented example, the asking price is well above the normal used-market envelope.
The appeal is real. The JA-100 is a seriously built, fully balanced Class A design with substantial power, separate supply architecture, very low noise, and a reputation for expansive imaging and effortless delivery. It suits demanding speakers and enthusiasts who value its distinctive, muscular sound. Still, at this price, insist on clear model/version identification, voltage compatibility, service history, and proof of flawless operation; the listing’s unknown condition makes the premium difficult to justify. A materially lower offer, nearer USD 1,500–USD 2,125, would make far more sense.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.