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Adcom GTP-500II 2 Channel Pre-Amp Tuner, original box and packaging -ONE OWNER
Tuner ADCOM GTP-500 II 15 views

Adcom GTP-500II 2 Channel Pre-Amp Tuner, original box and packaging -ONE OWNER

USD$415
Location
US
Seller
becketlitte0
Source
eBay US
Posted
14 Jul 2026
Last seen
22h ago

RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.

Our Thoughts RADAR AI

US$415 is ambitious against the recent comp set: it sits well above the US$350 75th percentile and far above the US$250 median, so this is not a fair-market anchor unless the unit is exceptionally clean, documented, or includes scarce accessories. Against the listed comparables, you’re paying a meaningful premium.

That said, this is still a respected piece if you want a straightforward, good-sounding tuner section in a serious vintage/used rack. Its appeal is the combination of solid build, competent FM performance, and the kind of no-drama utility that ADCOM gear is known for. At this price, I’d want clear evidence of recent servicing, strong reception, and complete cosmetics before calling it a buy.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About ADCOM

ADCOM emerged in the 1970s as a family-owned American audio venture founded by audiophile Newt Channin, initially focusing on exceptionally musical moving-coil phono cartridges that set it apart from typical entrants. The brand quickly pivoted to electronics with the groundbreaking GFA-1 power amplifier in 1979, delivering 200 watts per channel and robust current for demanding speakers, propelling ADCOM into prominence during the high-fidelity boom of the 1980s and 1990s.

The company built its legacy on high-performance amplifiers, including the Nelson Pass-designed GFA-555 that garnered worldwide acclaim, alongside AV tuners, preamps, and multichannel power amps like the GFA-6000 tailored for home theater. While early roots lay in phono gear, ADCOM specialized in electronics offering superior sound quality without extravagant pricing, eschewing speakers, headphones, or extensive cabling lines.

Positioned firmly in the mid-fi realm, ADCOM defined accessible high-end audio for discerning buyers, blending value and performance that rivaled pricier competitors. After challenges and ownership shifts—including a Thai firm and a faltering 2010 relaunch—the brand staged a robust comeback in 2024 under J&B Distribution, reviving classics like the GFA-555ms alongside modern integrated amps and preamps, reclaiming its spot among savvy audiophiles seeking reliable, soul-stirring sound.

See all ADCOM listings on RADAR.

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