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At US$150, this Drop + THX AAA 789 is a genuine bargain, sitting well below the 25th percentile of US$128 from our recent comparable listings and far under its original US$299–US$400 MSRP. The median used price is US$150, so this listing matches that fair mark exactly, but since it’s listed as “unknown” condition, the real value hinges on verification—yet even with that caveat, US$150 is a strong entry point for one of the most respected linear amplifiers in the hobby.
The AAA 789 is beloved for its ultra-low noise, THX-certified linearity, and 6W balanced output that drives demanding headphones effortlessly. It’s a rare find at this price in the used market, especially when it includes box, manual, and pouch like most clean listings. If the unit is functional and unmodified, this is a clear buying opportunity for anyone seeking reference-grade sound without the cost of boutique amplifiers. Just confirm power-up and output integrity before committing.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Drop originated as Massdrop in San Francisco in 2012, pioneering a community-driven model that aggregated enthusiast demand to source and develop exclusive products directly from manufacturers. By bypassing traditional retail chains, it built a loyal following of over 7 million members through limited-time "drops" of unique gear, earning acclaim for delivering hard-to-find items at competitive prices. The brand rebranded to Drop in 2019, expanding into its own designs like the Drop SHIFT mechanical keyboard and wireless headphones, often in collaboration with names such as Sennheiser for audiophile-grade audio.
In the hi-fi realm, Drop specialized in headphones, DACs, amplifiers, and cables, alongside mechanical keyboards and gaming peripherals, with audio as a flagship category. Its approach emphasized user feedback to refine products, yielding sought-after collabs like the Massdrop x Sennheiser line, blending accessibility with performance for enthusiasts.
Drop held a niche position as a disruptor in the mid-tier market, appealing to savvy buyers seeking value-driven, community-vetted hi-fi without high-end premiums. Acquired by Corsair in 2023, it shifted toward gaming hardware before shuttering its core operations in March 2025, marking the end of an era for direct-to-consumer audio innovation.
See all Drop listings on RADAR.
