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At £2,404, this sits around fair-to-strong used value for a CS-100A, not a bargain-bin score but also not overreaching if the amp is clean and fully working. New pricing for this model has been in the £3,500–£5,500 neighborhood depending on seller and spec/version, so this ask is meaningfully below new and in the range I’d expect for a desirable used tube integrated of this class.
What makes it worth chasing is the combination of serious output and proper tube character: the CS-100A is rated at 80Wpc in ultra-linear and 50Wpc in triode, with KT88/EL-family compatibility and a bias meter, so it has the muscle to drive real speakers while still giving you the spacious, relaxed Cayin presentation. If it’s been well cared for and includes good tubes, this is the kind of listing that can be a very satisfying buy rather than a project.
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.
