Cayin iDAC-6 MK2

The Cayin iDAC-6 MK2 offers a remarkable dual personality thanks to its switchable output stage between tubes and transistors. At the heart of the device, two SABRE ES9028Pro converters precisely decode the most demanding formats up to PCM 32-bit/768kHz and DSD512. Its elegant chassis also houses a 3.95-inch AMOLED display inherited from the flagship CS-100DAC model, providing a sophisticated and intuitive user interface. Its extensive connectivity and integrated preamplifier function make it a true nerve center for modern high-fidelity systems.

Audiophile Dual-Converter Architecture

The iDAC-6 MK2 relies on a symmetrical configuration using two ES9028Pro DACs, considered among the best available. This dual architecture optimizes channel separation and significantly improves the signal-to-noise ratio, two essential parameters for faithfully reproducing musical nuances. The technical implementation achieves outstanding performance in terms of definition and resolution.

For audiophiles keen to fine-tune their listening experience, the converter offers seven digital filters in PCM mode and four specific filters for DSD. This customization allows you to tailor the sound signature to your preferences and the type of recording—a feature rarely so developed in devices of this category.

The extensive compatibility with modern formats is particularly noteworthy: the USB port supports all PCM formats up to 32-bit/768kHz as well as native DSD up to DSD512. The AES/EBU, optical, and coaxial inputs support PCM up to 24-bit/192kHz and DSD64 via the DoP (DSD over PCM) protocol.

Dual Sound Personality: Tubes and Transistors

The main asset of the iDAC-6 MK2 lies in its ability to offer two distinct sound signatures thanks to its switchable output stage between tubes and transistors. This rare feature allows you to adapt the device to different musical styles and listening preferences without changing equipment.

In transistor mode, the DAC delivers precise, detailed, and dynamic reproduction, ideal for genres requiring great transparency. The soundstage is well defined, with rigorous articulation and an analytical presentation that will satisfy fans of a neutral sound.

Switch to tube mode, and the sound signature transforms thanks to the four 6N1B tubes that make up the output stage. The result becomes more voluptuous and warm, particularly flattering for female vocals and jazz. This subtle coloration brings an extra emotional dimension to recordings, favoring musicality over absolute neutrality.

This duality applies to both unbalanced RCA and balanced XLR outputs, offering four possible sound combinations depending on the chosen configuration.

Remarkable Functional Versatility

The Cayin iDAC-6 MK2 transcends its initial role as a simple converter to become a true audio control center. Its integrated preamplifier function allows you to adjust the output level, opening up the possibility of direct connection to a power amplifier or active speakers.

The output voltages vary significantly depending on the configuration used. In standard line mode, the device delivers 2.2V RMS on RCA outputs and 4.4V RMS on XLR outputs, conventional values suitable for most amplifiers.

The preamplifier function reveals its full power with much higher voltages: up to 7V RMS in RCA transistor mode (6V in tube mode) and up to 13V RMS in XLR transistor mode (10V in tube mode). These high values ensure excellent dynamics and a comfortable margin for driving demanding power amplifiers.

This flexibility allows for simplified system configurations, potentially eliminating the need for an external preamplifier and thus reducing the number of devices and cables in the audio chain.

Comprehensive and Versatile Connectivity

The wealth of connections on the iDAC-6 MK2 illustrates its role as a hub for modern digital sources. Its six digital inputs cover all current needs:

• A USB-B input compatible with PCM 32-bit/768kHz and native DSD512
• A professional AES/EBU input
• An optical Toslink input
• Two coaxial S/PDIF inputs
• An HDMI i2S input for compatibility with high-end digital transports

On the analog output side, the device offers both unbalanced RCA and balanced XLR connections, each available in tube or transistor mode, and configurable as fixed or variable level.

This abundance of options ensures seamless integration into virtually any existing audiophile environment, whether it’s a modern minimalist computer-based system or a more complex traditional setup with multiple sources.

Sophisticated Interface Inherited from the High-End Range

The user interface of the iDAC-6 MK2 has undergone a major evolution compared to its predecessor. The DAC now features a 3.95-inch AMOLED display directly inspired by the brand’s flagship CS-100DAC model.

This high-quality display makes it easy to navigate the converter’s many settings and functions: input selection, digital filter choice, volume adjustment, switching between tube and transistor modes, and viewing information about the currently playing audio stream.

The modern and intuitive graphical interface enhances the product’s appeal and significantly improves the daily user experience compared to more basic display systems. This evolution demonstrates Cayin’s attention to practical aspects, beyond just sound performance.

Notable Evolution Compared to the First Generation

The transition from the original iDAC-6 to the MK2 represents “quite a leap in performance,” according to some expert analyses. This substantial evolution is evident on several levels.

First, the user interface has been completely redesigned with the adoption of the AMOLED screen, greatly improving ergonomics. Compatibility with high-resolution formats has also been extended, notably to DSD512 and PCM up to 768kHz.

Significant improvements have been made to the preamplified output circuits, with much higher available voltages allowing direct driving of power amplifiers under optimal conditions.

The addition of the HDMI i2S input also expands connection possibilities with modern digital transports, an option absent from the original model.

Overall sound quality has also improved thanks to the optimization of the analog circuits and the use of the ES9028Pro DAC in a perfectly mastered dual and symmetrical configuration.

Technical Specifications

Audio Processing

• Digital-to-analog converter with dual ESS ES9028Pro DAC
• Compatible with the following formats:
  • PCM up to 32-bit / 768 kHz
  • DSD from DSD64 to DSD512
• Configurable line output:
  • Transistor mode
  • Tube mode (4 x 6N1B)
• 5 built-in digital filters
• DoP-compatible S/PDIF inputs
• XMOS USB interface
• LCD screen for intuitive control

Audio Performance

• RCA line output: 2.2 V RMS
• XLR line output: 4.4 V RMS
• Preamp output available

Connectivity

• Digital inputs:
  • 1 x USB-B
  • 1 x Toslink optical
  • 1 x AES/EBU
  • 2 x coaxial
  • 1 x HDMI i2S
• Analog outputs:
  • 1 x RCA
  • 1 x balanced XLR

Physical Characteristics

• Sturdy steel/aluminum chassis
• Dimensions: 240 x 69 x 253 mm
• Weight: 3.8 kg