Cayin RU9 Portable DAC and Headphone Amplifier Revolutionizes Audiophile Experience

One of the standout features of the RU9 is its timbre customization. With three distinct profiles—Classic Tube, Modern Tube, and Solid-State Transistor—it allows listeners to tailor the sound to their preferences. Classic Tube delivers the signature warm, saturated sound characteristic of vacuum tubes, while Modern Tube offers a cleaner, slightly brighter tonality. The Solid-State mode emphasizes neutrality and fast transients, driven by the OPA1662 amplifier circuitry. This versatility ensures the RU9 can adapt to a wide variety of musical genres and headphones.

For audiophiles seeking even more power, the RU9 introduces a Dynamic DC Hyper Mode, pushing its output to an impressive 1000mW at 32Ω impedance when externally powered. This mode enhances dynamics, transparency, and overall detail, making it ideal for demanding headphones or critical listening sessions. Additionally, the onboard battery offers up to 4.7 hours of portable operation, while Bluetooth connectivity via Qualcomm’s QCC5125 chipset supports high-definition codecs like LDAC, AptX HD, and AptX LL for wireless listening.

Crafted with precision, the RU9 features a CNC-machined aluminum chassis that balances durability and portability. A magnetic rear panel allows easy attachment to smartphones or other devices, while its compact design, weighing only 150g with a 15mm thickness, ensures convenient everyday use. The display provides real-time information, including volume, profile mode, connection type, and gain level, making operation intuitive.

The Cayin RU9 sets a new benchmark for portable audiophile equipment with its unique integration of tube and solid-state technologies, high-resolution decoding capabilities, and customizable sound profiles. Priced at $449.99, it offers a compelling mix of innovation and performance for discerning music enthusiasts.