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This is an older, legacy room-correction/preamp piece, so timing matters mainly if you want a classic TACT setup rather than the newest DSP workflow. At US$2,250, the ask looks ambitious versus the small pool of used references I can find: one RCS 2.0 AA listing previously sold around US$1,025, and a later RCS 2.2 was listed at about US$1,450 after conversion from €1,300, so this sits well above the usual used lane.
That said, the 2.0 is still a respected early digital room-correction platform, and for someone who wants the original TACT character and functionality, it can be a very capable buy if it’s complete and working properly. The upside is strongest if it includes the mic, remote, and any needed cables/manuals, because replacements can be inconvenient on these older processors. If the unit is truly clean and fully functional, it’s interesting; at this price, though, you want real completeness and proof it’s healthy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
TACT Audio emerged in the late 1990s as a pioneering force in digital amplification, debuting the Millennium at the 1997 Stereophile Show as the world's first true digital amplifier using pure Pulse Width Modulation (PWM) technology. This Danish innovator quickly gained attention for bridging digital signal processing directly to loudspeakers, minimizing analog conversion losses. While a separate Chinese entity, TACT Pro Audio, launched in 2013 focusing on professional speakers and systems, the hi-fi brand's heritage centers on its early breakthroughs in high-resolution audio electronics.
The brand specializes in cutting-edge digital amplifiers like the renowned Millennium series, including models such as the 2150 and 216, alongside stereo digital preamplifiers like the 2.2x with dynamic room correction supporting up to 96kHz/24-bit PCM. Their lineup emphasizes PWM amplification and innovative DSP for precise sound reproduction, targeting audiophiles seeking digital purity over traditional analog designs. Speakers and related pro audio gear appear in later iterations, but TACT's core strength lies in amplification and correction tech.
Positioned as a niche high-end boutique in the hi-fi market, TACT commands respect among knowledgeable buyers for its trailblazing digital innovations, though its visibility has waned amid service complaints and apparent dormancy. Collectors and digital amp enthusiasts prize vintage Millennium units, while the brand's forward-thinking approach continues to influence modern Class D designs.
See all TACT Audio listings on RADAR.
