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Compared with buying a new US$4,399 HA-300MK2, US$2,799 is a solid used buy rather than a bargain-bin score, but it is clearly below typical new pricing and sits in the range where a clean, complete unit starts to look attractive. It’s not low enough to call a steal without more condition detail, yet for this caliber of amp the ask is still fair if it’s in good shape and includes the essentials.
The appeal is straightforward: this is a true 300B, transformer-coupled tube flagship with plenty of drive, a big, saturated presentation, and speaker output on top of headphone use, so you’re buying something genuinely special rather than just a prettier desktop amp. The upside is best if the listing includes the stock tube set, original packaging, and proof it’s been treated well; with tube gear like this, those details matter more than cosmetic perfection.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Cayin Audio traces its roots to 1993, when Zhuhai Spark Electronic Equipment Co., Ltd. was established in Zhuhai, China. From the outset, the company focused on crafting audiophile-grade components under the Cayin brand, blending Eastern precision with a passion for musical fidelity. Over three decades, it has evolved from traditional hi-fi roots into a multifaceted player, emphasizing equipment that delivers exceptional sound across diverse price points to democratize high-quality audio.
The brand excels in a broad spectrum of categories, with its vacuum tube amplifiers standing out as flagship offerings renowned for warmth and detail. Its portfolio extends to CD players, speakers, digital audio players (DAPs), desktop systems like the i-series, portable amplifiers, in-ear monitors, and even innovative DACs such as the compact RU2 dongle. Since venturing into personal audio in 2013, Cayin has prioritized portable and lifestyle solutions, including the N-series DAPs, all while maintaining rigorous build quality with premium materials like milled aluminum and walnut wood.
Cayin holds a solid mid-to-high-end position in the global hi-fi market, prized by discerning buyers for its value-driven performance and cultural depth. It bridges accessible excellence with boutique appeal, earning acclaim for tube amps that rival pricier rivals, without veering into ultra-esoteric territory. This Chinese powerhouse continues to carve a lasting niche among knowledgeable enthusiasts seeking reliable, soulful sound.
See all Cayin Audio listings on RADAR.
