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Cayin discrete R-2R, RU6 dac/headphone amp dongle. This item has a usb c to lightning and usb c to usb connector and a usb c to usb A adaptor. The item is in excellent condition and basically I no longer use it. Connects easily to mobile phones or computers. Price includes postage.
At A$220, this sits just above the A$206 median and inside the normal used spread, so it reads as a fair ask rather than a steal. It’s not below the A$185 25th percentile, but it’s close enough to the middle that a clean example in excellent condition is reasonably priced, especially if you’ve been waiting for one locally.
The RU6 is well-liked for its compact, characterful R-2R-style sound and easy portability, with enough refinement to make a meaningful upgrade over basic dongles. In excellent condition, the main upside is simply getting a tidy unit without the wait or risk of a more beaten-up example. If it includes the original cable, adapters, and packaging, that adds a bit more value; otherwise, it’s still a sensible buy at this level.
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.
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