Dunu DTC480 vs DTC800 DAC/AMP Review: Which is the Better Choice?

This review compares the Dunu DTC480 and DTC800, two portable DAC/AMPs sharing a similar design and core components. Both devices utilize dual Cirrus Logic 43198 DAC chips, offering impressive audio capabilities including support for high-resolution audio formats. While aesthetically distinct – the DTC480 boasting a more angular design and the DTC800 a sleeker profile – both feature robust aluminum construction and a similar set of ports. Key differences lie in their power output and reported user experiences.This head-to-head analysis explores the nuanced differences in performance, battery life, and overall user experience between these two models. We delve into their build quality, sound signature, and practical usability, examining whether the DTC800's slightly increased power justifies its higher price tag. Ultimately, we aim to help you determine which DAC/AMP best suits your needs and budget, considering both the manufacturer's specifications and real-world performance observations.

Pros And Cons

Dunu DTC480
  • CNC machined full aluminum body
  • Separate volume buttons (more durable)
  • Compact size and lightweight
  • Sufficient power output for most headphones
  • Does not get hot during use
  • Good price-performance ratio
  • Lacks user manual
Dunu DTC800
  • CNC machined full aluminum body
  • Separate volume buttons
  • High gain mode
  • Higher power output than DTC480
  • Reported noise and dropout issues (though not experienced by reviewer)
  • Higher price than DTC480
  • Gets hotter than DTC480 during use
  • Lacks user manual
  • Lack of standout features at its price point

Read more: Fiio K11 R2R DAC/Amp Review: A Worthy Upgrade or Redundant Luxury?

Unboxing and Packaging

Both the Dunu DTC480 and DTC800 arrived in nearly identical packaging. The boxes themselves, along with the included accessories, were virtually the same – the only difference being the color: blue for the 480 and gray for the 800.

Image showing the packaging of both the Dunu DTC480 and DTC800.
Image showing the packaging of both the Dunu DTC480 and DTC800.

Each package contained the DAC/AMP unit, a USB-C to USB-C cable, and a USB-A to USB-C adapter. This minimalist approach is appreciated; the essentials are included, and nothing more is needed.

Close-up of the included USB-C cable and USB-A to USB-C adapter.
Close-up of the included USB-C cable and USB-A to USB-C adapter.

Build Quality and Design

Both DAC/AMPs boast CNC-machined full aluminum bodies, though their designs differ. The DTC480 sports a more angular, almost Cybertruck-like aesthetic, while the DTC800 has a sleeker, more oblong shape.

The Dunu DTC480 DAC/AMP showcasing its angular design.
The Dunu DTC480 DAC/AMP showcasing its angular design.

The placement of ports (USB-C on one side, 3.5mm and 4.4mm balanced outputs on the other) is consistent across both units. Both also feature individual volume up and down buttons, which feel sturdy and well-constructed.

The Dunu DTC800 DAC/AMP displaying its sleek, oblong design.
The Dunu DTC800 DAC/AMP displaying its sleek, oblong design.

Specifications and Performance

Under the hood, both units utilize dual Cirrus Logic 43198 DAC chips, supporting up to 32-bit/786kHz PCM and native DSD256 playback. Neither supports inline controls or microphones, a common limitation in this class of device.

Screenshot highlighting the key specifications of the DAC/AMPs.
Screenshot highlighting the key specifications of the DAC/AMPs.

The DTC800 has a slight power advantage, incorporating dual SGM8262 op-amps. While the 480 also features dual amp chips (brand unspecified), both DAC/AMPs delivered sufficient power to drive even power-hungry headphones without issue.

Text overlay mentioning the op-amps used in the DTC800.
Text overlay mentioning the op-amps used in the DTC800.

Battery Drain and Thermal Performance

A battery drain test using the demanding Sennheiser IE 900 showed the DTC480 drained 24% of the phone's battery after one hour of playback, reaching a temperature of 99.6°F.

Results of the battery drain test for the DTC480.
Results of the battery drain test for the DTC480.

The DTC800, while slightly warmer at 105°F and with a 28% battery drain, remained comfortably within safe operating temperatures. Both units performed admirably in this test.

Results of the battery drain test for the DTC800.
Results of the battery drain test for the DTC800.

User Experience

The user experience is straightforward on both devices. Volume control is handled via the physical buttons on the unit, while additional functions (like gain selection and filter choices on the DTC480) are accessed through button combinations.

Close-up of the volume buttons on one of the DAC/AMPs.
Close-up of the volume buttons on one of the DAC/AMPs.

The absence of a physical user manual is a minor drawback. Users need to refer to online resources to learn the button combinations. The buttons themselves provide satisfying tactile feedback.

Mentioning the lack of a physical manual.
Mentioning the lack of a physical manual.

Sound Quality and Comparison

Subjectively, the sound quality across all three units (including the reviewer's own Snowy Knight) was very similar due to the shared DAC chip. The DTC800 exhibited slightly higher output power, reaching the clipping point sooner.

Reviewer's personal DAC/AMP, used for comparison.
Reviewer's personal DAC/AMP, used for comparison.

While some online reports mention noise and dropout issues with the DTC800, the reviewer did not experience these problems during testing. Overall, all three sounded clean and clear, letting the headphones and audio sources shine.

AB comparison being performed.
AB comparison being performed.

Conclusion and Recommendation

The Dunu DTC480 gets a strong recommendation due to its excellent price-to-performance ratio, compact size, and more than sufficient power. Its build quality is superb, and the buttons feel satisfying to use.

Summary of the review, highlighting the reviewer's conclusion.
Summary of the review, highlighting the reviewer's conclusion.

The DTC800, while powerful and well-built, is held back by reported issues (not encountered by the reviewer) and a higher price point which doesn't offer enough extra features to justify the cost. In this price bracket, alternatives offering desktop-level power might be better choices.

Final thoughts on the DTC480.
Final thoughts on the DTC480.