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Blue desktop DAC and headphone amplifier with 3.5mm and 4.4mm outputs

Khadas

Khadas Tone2 Pro DAC Headphone Amplifier Blue

SKU CH-D27V-HE7XX

Desktop DAC and headphone amplifier with ESS ES9038Q2M, four OPA1612 op-amps, XMOS XU216 MQA decoding, 32-bit 768 kHz and DSD512 support, 3.5 mm and 4.4 mm outputs, balanced RCA.

  • ESS ES9038Q2M DAC with four OPA1612 op-amps for transparent sound
  • 32-bit 768 kHz PCM and DSD512 bit-perfect playback
  • Hardware MQA decoding via XMOS XU216 for authenticated master quality
  • Balanced 4.4 mm and unbalanced 3.5 mm headphone outputs plus balanced RCA line-out
  • Second USB-C I2S port accepts 5 V linear supply for ultra-low noise floor

Desktop DAC and Headphone Amplifier

The Khadas Tone2 Pro combines an ESS ES9038Q2M converter with four OPA1612 operational amplifiers and three buffer stages in a single desktop unit. It accepts digital audio through USB-C and a second USB-C I2S port, then outputs to 3.5 mm unbalanced, 4.4 mm balanced and balanced RCA connectors. Hardware MQA decoding via the XMOS XU216 processor enables authenticated master-quality streaming without software overhead.

Resolution headroom and output flexibility

The DAC processes PCM up to 32 bit 768 kHz and native DSD512, so high-resolution libraries play back at their native rates. Line-out THD+N reaches -118 dB, preserving detail through the balanced RCA and 4.4 mm jacks. The four-amplifier chain drives demanding headphones cleanly, while the 3.5 mm jack covers everyday listening. Buyers who want more output voltage than the balanced RCA provides or who need XLR without an adapter will not be served by this unit.

Hardware MQA decoding via XMOS XU216

The XMOS XU216 processor performs full MQA unfolding in hardware, delivering bit-perfect master-quality streams from supported services without host CPU load. A dedicated Khadas USB driver adds ASIO support and removes Windows sample-rate conversion. No other single specification determines compatibility with MQA sources as decisively as this processor.

Highlights

  • ESS ES9038Q2M DAC with four OPA1612 op-amps for transparent sound
  • 32-bit 768 kHz PCM and DSD512 bit-perfect playback
  • Hardware MQA decoding via XMOS XU216 for authenticated master quality
  • Balanced 4.4 mm and unbalanced 3.5 mm headphone outputs plus balanced RCA line-out
  • Second USB-C I2S port accepts 5 V linear supply for ultra-low noise floor

Specifications

No published specifications for this item yet.

Questions about this item

Will the 3.5 mm and 4.4 mm outputs on the Tone2 Pro drive my existing headphones without an extra adapter?

Yes, the unit provides both a 3.5 mm unbalanced jack and a 4.4 mm balanced jack so you can plug in most headphones directly.

How can I verify that the ES9038Q2M DAC is decoding MQA streams correctly after I connect it?

The XMOS XU216 processor handles full MQA unfolding; when a certified MQA file plays, the device indicates the authenticated master quality stream is being rendered.

Does the package include the balanced-RCA to XLR-3 adapter and a linear power supply for the second USB-C port?

The box contains the Tone2 Pro DAC amplifier, a USB-C cable and documentation; the balanced-RCA to XLR-3 adapter and any external 5 V linear power supply are sold separately.

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