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Boulder 866 Integrated Amplifier (Solid State) Up for sale is so far the best integrated/ dac/streamer I ever heard for the money. I have tried several dac/streamers compared to the internal dac streamer of 866 and I have to say the 866 is really really amazing. There are many reviews. This unit is like brand new and has never left the rack since new. I have all packaging. This unit is less than 1yr old. Let me know if u need more photos Condition: As New / Mint Payment Method: Cash or transfer Region/State: (VIC) Victoria/Australia By Audiome 0 Comments AUD $19,800 Date: April 22, 20251 yr
Is A$19,800 worth paying for this one, or should you wait for a cleaner buy? Against your recent comps, it’s sitting above the 75th percentile, so this is an ambitious ask rather than a fair-market bargain. There’s no reason to panic if the unit is truly mint and well-documented, but at this level I’d want standout provenance or extras to justify the premium.
The 866 is a well-regarded integrated for buyers who want serious control, grip, and a genuinely refined all-in-one setup, so the appeal is real. It’s the kind of amp that can anchor a high-end system for years, and good examples don’t linger forever. Still, with condition unknown, the key checks are straightforward: confirm full functionality, original remote/accessories, and any service history before paying up.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Boulder Amplifiers traces its roots to the professional recording and broadcast world of the 1970s, when founder Jeff Nelson, a self-taught electronics expert, built mixing boards for studios. In 1984, the company formally launched in Colorado—initially in an old farmhouse near Superior, later relocating to Louisville—with the debut of its rugged 500 power amplifier, prized by engineers for its clarity and durability. Under Nelson's leadership for over four decades, Boulder transitioned from pro audio gear to the pinnacle of home high-fidelity, maintaining full vertical integration in a sprawling 23,000-square-foot facility where every chassis, circuit, and component is crafted in-house.
The brand specializes in solid-state power amplifiers, preamplifiers, and integrated electronics, epitomized by flagships like the 2150 monoblock and 800 Series. Absent from speakers, turntables, DACs, headphones, or cables, Boulder's focus remains laser-sharp on amplification, delivering ultra-neutral sound with vanishingly low distortion—such as the 2150's 0.00036% THD and 1000W output—and peerless signal-to-noise ratios.
Positioned at the apex of high-end audio, Boulder commands reverence among discerning audiophiles for indestructible build quality, cost-no-object engineering, and machined-aluminum casework that sets unmatched standards. As North America's last fully in-house audio manufacturer, it appeals to buyers seeking unflappable performance and heirloom longevity, with prices reflecting its elite status, like $110,000 pairs of monoblocks.
See all Boulder listings on RADAR.
