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iBasso DC03 USB-C DAC Adapter with 3.5mm Output

iBasso DC03 USB-C DAC Adapter with 3.5mm Output
  • iBasso DC03 USB-C DAC Adapter with 3.5mm Output
  • iBasso DC03 USB-C DAC Adapter with 3.5mm Output

iBasso DC03 USB-C DAC Adapter with 3.5mm Output

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iBasso DC03 USB-C DAC Adapter with 3.5mm Output

The iBasso DC03, successor of the DC02, is largely based on the principle of the DC01, while making a modification to its conversion/amplification stage as well as to its output. As compact and powerful as ever, the DC03 is ideal to accompany a smartphone equipped with a USB-C output but without a 3.5mm jack. It will allow you to enjoy your music in very high quality, wherever you are!

Dual DAC CS43131

Based on a pair of Cirrus Logic CS43131 digital-to-analogue converters, the iBasso DC03 is capable of reading high-resolution files up to 32bit 384kHz PCM and DSD256. These chips also incorporate an amplification stage, providing low noise floor and low impedance for natural sound reproduction.

Amplification stage

The DC03 offers an output voltage of 2Vrms at 300Ω and 1.61Vrms at 32Ω. It delivers a power of 80mW at 32Ω, which is more than enough to accompany EMI with ease.

From smartphone to computer: USB UAC2.0 sound card function

The DC03 is equipped with a USB-C connector and uses the USB UAC2.0 reception standard. It is compatible with the vast majority of Android smartphones and tablets on the market. It is also capable of connecting to a computer running Mac OS or Windows using the high-quality USB-C to USB-A adapter provided. This allows it to work exactly like a sound card, and in an extremely simple way since the system is Plug & Play.

Volume control per application

Windows 10 and Android 5.0 (or higher) support the UAC2.0 protocol by default. However, for compatibility reasons, Android smartphone manufacturers still use the SRC protocol on the audio output. When the DC03 is connected, the volume is set to maximum by default and the device's software algorithm is used to reduce the volume. While this method does reduce the volume, it does not reduce the noise threshold. So iBasso has developed a volume control application using the UAC2.0 protocol to allow hardware 64 step volume control while reducing the noise threshold and providing much better audio performance.


  • Ultra-low noise floor: <0.9µV
  • Output voltage: 2Vrms (300 Ohms), 1.61Vrms (32 Ohms)
  • Output power: 80mW @ 32 Ohms
  • Signal to Noise ratio: 127dB
  • Support of PCM up to 32bit/384kHz
  • Support of Native DSD up to 256x
  • USB Type-C Interface
  • 3.5mm Headphone Output

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