This in-depth review delves into the Cayin iDAC8, a hybrid tube/solid-state DAC boasting a sleek design and impressive build quality. We explore its features, including a comprehensive array of digital inputs (optical, USB, i2S, coaxial, and AES/EBU), support for PCM and DSD formats, and the unique ability to switch between tube and solid-state amplification on the fly. The review examines the sound quality produced by both modes, detailing the nuances and differences observed during testing. We also assess the user interface, highlighting both its strengths and weaknesses, and critically evaluate the internal components and construction.Beyond the audio performance, this review provides a candid assessment of the iDAC8's ergonomics and potential drawbacks. We address the usability of the volume knob and menu system, pointing out specific areas for improvement. Furthermore, we highlight a significant design flaw concerning an easily activated button that poses a risk of equipment damage. Ultimately, this review aims to provide a balanced perspective, showcasing the Cayin iDAC8's strengths and weaknesses to help potential buyers make an informed decision.
Pros And Cons
- Sounds soft and forgiving
- Uses a high-end AKM 4499 DAC chip
- Has a tube pre-out that can be compared directly to its solid-state output
- Has XLR outputs
- Multiple input options (Optical, USB, I2S, Coaxial, BNC, RCA)
- I2S input only works with Ken products
- Volume knob sometimes skips or goes backward when turned quickly
- Menu is difficult to navigate
- OLED screen may burn in
- Rubber feet are slippery
- Line SL (pre-amp) button is too easily accessible and could damage connected equipment if accidentally activated.
- 15-second preheating time, even when not using the tube mode
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Unboxing and Initial Impressions
The Cayin iDAC8 arrived in its sleek packaging. The unit itself is beautifully crafted with a high-quality feel. The large volume knob and minimalist design are immediately appealing.
Initial setup was straightforward, though the somewhat slippery rubber feet proved slightly problematic for stability. The OLED screen offers clear visibility and intuitive navigation.
The inclusion of both tube and solid-state options for signal processing is a unique selling point. I was curious to see how this hybrid approach would impact sound quality.
Connectivity and Features
The iDAC8 offers a comprehensive range of digital inputs including optical, USB, and i2S. The i2S input, however, presented some compatibility issues, only functioning reliably with Ken devices.
Other inputs include coaxial (BNC and RCA) and AES/EBU. The device also supports PCM and DSD formats.
A unique feature is the ability to switch between tube and solid-state circuitry on the fly, providing a direct comparison of the two sounds.
Sound Quality and Performance
The iDAC8 produced a warm, detailed sound, even when using its solid-state circuitry. It impressed with the depth and spaciousness of its soundstage.
Switching between tube and solid-state modes yielded a subtle difference, with the tube mode adding a touch of warmth and richness. The change was less dramatic than I anticipated.
The DAC's performance was impressive across different genres, making it a versatile option for various listening preferences.
Menu and Control
The on-unit menu system is somewhat limited and lacks intuitive navigation. The volume knob, while feeling premium, has some quirks, occasionally skipping or reversing at faster speeds.
The PCM and DSD filter settings offer customization options, although I found the differences between them to be minimal in actual listening tests.
The hidden third button, which controls line/preamp output, is a major design flaw due to its easy accidental activation and potential damage risk.
Internal Components and Build
Inside, the iDAC8 houses four tubes, a substantial power transformer, and high-quality components. The AKM AK4499EQ DAC chip is a standout feature.
The build quality is excellent, though some minor assembly issues, such as loose screws and a slightly sticky top panel, were observed.
The internal layout is well-organized, which seems to contribute to its impressive sonic performance.
Conclusion
The Cayin iDAC8 delivers exceptional sound quality and impressive build quality, albeit with some minor flaws.
The hybrid tube/solid-state design is a unique selling point, but the sonic differences between modes are less impactful than expected.
The most significant drawback is the easily activated line/preamp button, which poses a considerable risk of equipment damage. Despite this, the iDAC8 is a fantastic-sounding DAC, but use caution with its line out features.