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Audio Space Reference 3.1 Integrated Amplifier (Valve) One of the very best reference 300B tube amplifiers on the market. In the same "stunning" league as legendary Canary Audio M600 monoblocks with 300B tubes, costing over $30 000. 300B tubes are widely regarded as no. 1 tubes for natural voice and mid range reproduction. Reference 3.1 can be used as power amplifier: it has bypass input for pre-amplifier. Specifications: see photo. Australian 240V stock from local Audio Space dealer. Preferred collection in Melbourne (Frankston). Shipping at extra cost. The Tube Stereo Integrate
At A$4,500, the asking price for this Audio Space Reference 3.1 is slightly ambitious compared to the typical used market, where similar valve integrateds often trade between A$3,200 and A$3,800, though it remains below the median for top-tier 300B units that can exceed A$6,000 used. This is not a bargain, but it is a fair price for a well-regarded amplifier that delivers exceptional tonal richness and quick warm-up, making it a worthwhile buy for enthusiasts who prioritize tube sound over raw power.
The Reference 3.1 is celebrated for its lush, natural midrange and ability to breathe with music, using only thirty minutes to reach peak performance, which is a significant upside for casual listeners. While it produces around 26 watts and requires careful speaker matching, its original-owner condition and inclusion of the full tube complement make this a solid buying opportunity rather than a risky listing, especially if you value sound quality over sheer volume.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Canary Audio is a U.S.-based hi-fi brand founded in 1996, with its origins in California and a clear identity as a specialist in tube electronics. The company describes itself as an American manufacturer of high-end audio electronics and accessories, and third-party coverage places its early emphasis on 300B-based amplifier design from the start.
Its core product focus is amplifiers and preamplifiers, especially tube designs, including integrated amps, power amps, and reference preamps. The brand’s own materials emphasize handcrafted U.S. production, and its lineup is centered on electronics rather than speakers, turntables, headphones, or digital source components.
In the market, Canary Audio sits firmly in the high-end, niche boutique category. It is best known among tube-amp enthusiasts and buyers seeking traditional valve sound, especially 300B and other classic tube topologies, rather than broad mainstream appeal. Its reputation is strongest with collectors and serious audiophiles who value American-made, hand-built amplification.
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