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This US$999 asking price for the used Aragon 4004 MK II is ambitious, sitting clearly above the 75th percentile of US$907 and well beyond the median of US$881 from your listings database. While not a bargain, it reflects a fair but elevated market for this specific vintage model, especially given the condition ambiguity noted as "unknown."
The Aragon 4004 MK II remains a well-loved dual-mono solid-state classic prized for its dynamic authority, incredible bass control, and robust 400w into 4ohm output, making it a strong match for demanding speakers like Magnepans. Its high build quality and use of reliable TO3 transistors offer meaningful upside for enthusiasts seeking a vintage amplifier with modern solidity, though buyers should verify the condition and ensure original accessories are included given the price point.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Aragon emerged in the mid-1980s as a bold American audio brand under Mondial Designs, with its inaugural 4004 amplifier launching in 1987 and the iconic 8008 following soon after, forever altering high-fidelity sound reproduction through innovative engineering like the signature V-notch heatsink. Founded with a no-compromise ethos by leaders including Tony Federici, it prioritized pure sonic performance over gimmicks, setting industry trends rather than chasing them. Acquired by Klipsch around 2001-2006 and later shuttered, the brand was revived in 2009 by U.S.-based Indy Audio Labs, which relaunched it in 2013 with modern updates while honoring its heritage.
The brand focuses squarely on high-performance power amplifiers, exemplified by the 200Wpc dual-mono 8008 and premium Iridium monoblocks, alongside sophisticated processors like the Soundstage preamp capable of audiophile-grade decoding for Dolby Digital, DTS, and beyond. All products are designed and handcrafted in the USA, emphasizing fully decoupled power supplies, IC-free signal paths, and robust machined aluminum construction for superior thermal management and durability.
Aragon holds a revered position in the high-end market as a vintage-inspired powerhouse for discerning audiophiles, blending timeless reliability with contemporary software-upgradable features like Ethernet control. Its reputation for unadorned excellence—beautiful, powerful, and easy to operate—earns consistent praise from outlets like The Absolute Sound and Stereophile, appealing to buyers seeking reference-level amplification without excess.
See all Aragon listings on RADAR.
