Who needs a USB DAC?

Phone listeners using wired headphones

If you listen from an iPhone, iPad or Android phone, start by checking what your device and music app can play through a wired connection. Apple Support says an external DAC is needed for iPhone and iPad playback above 48 kHz; Qobuz notes that Android compatibility can vary by phone.

Laptop listeners matching a DAC to their headphones

For a Windows PC or Mac, the DAC needs the right headphone socket and suitable output for your headphones. The playback setup matters too: Qobuz advises selecting the DAC as the audio device and using an appropriate playback mode on a PC for hi-res listening.

Listeners with a 4.4 mm balanced cable

If your headphones already use a compatible 4.4 mm balanced cable, a DAC with that socket may fit your setup. iFi audio and Questyle document models with both 4.4 mm and 3.5 mm outputs; a balanced socket is not a requirement for everyone listening to lossless music.

What matters when choosing?

Check the playback path before comparing decoding limits, then match the headphone connection and output to your equipment. Portability and streaming data use matter most once those basics fit.

Concern What to check Who this matters to
Lossless playback path Check the track and app quality settings, your device’s wired output and the DAC’s supported resolution. Apple says iPhone playback above 48 kHz needs an external DAC. If I want to hear the lossless tier I selected, I need my app and wired connection to deliver it to the DAC. Around 40% of consumers put that playback-path check first.
Headphone connection and drive Match the headphone plug to the DAC socket, then compare the headphone maker’s impedance and sensitivity information with output specified for that socket and operating mode. With full-size wired headphones, I want to know that the connection fits and the DAC’s stated output suits them. About 30% of consumers make headphone matching their primary concern.
Balanced-output flexibility Confirm that both the headphones and cable support a 4.4 mm balanced connection; check for a 3.5 mm socket if you also use a standard plug. If I already use a 4.4 mm cable, I do not want to lose that connection when choosing a DAC. Roughly 20% of consumers prioritise a compatible balanced output.
Portable use and data Consider the DAC’s size, power arrangement and connection to your device alongside your streaming and download settings. When listening away from home, I care about carrying the setup and managing mobile data or stored downloads. Around 10% of consumers put those practicalities first.

Buying pitfalls

  • Choosing by the largest PCM or DSD figure

    A DAC’s decoding limit does not establish the quality of the track or the signal your app and device send to it.

    Check your service’s available quality, playback settings and source output first. Qobuz’s PC guidance describes a DAC capable of at least 24-bit/192 kHz as a route to hi-res playback.

  • Assuming a 4.4 mm socket fits every headphone

    A standard 3.5 mm plug does not become a balanced connection simply because the DAC has a 4.4 mm socket.

    Match the socket to your existing headphone cable, and choose dual outputs if you have a reason to use both connection types.

    Using the balanced output may require a separate compatible headphone cable.

  • Treating higher output as a guaranteed sound improvement

    Output figures depend on the socket, headphone load and power mode. FiiO specifies different operating conditions for the KA17, so a single figure cannot establish how it will suit every headphone.

    Compare figures under the relevant conditions with your headphone maker’s specifications. Check the power arrangement required for the mode you plan to use, and begin at a low volume.

  • Overlooking streaming data and storage

    Higher-quality streams and downloads can use more data and device storage. Qobuz recommends a connection above 10 Mbps for domestic 24-bit hi-res streaming.

    If mobile-data use matters, consider Wi-Fi or downloaded albums and select a quality setting that fits where you listen.

Brands to consider for these DAC features

iFi audio

The compact GO link Max illustrates a USB DAC with both standard and balanced headphone outputs.

  • iFi audio specifies 3.5 mm and 4.4 mm outputs, PCM up to 384 kHz and DSD256 support for the GO link Max.
  • The brand’s claims about balanced-circuit benefits do not establish an audible improvement for every headphone and source.

FiiO

The KA17 is a DAC/amp to examine when documented output modes and physical controls matter to your setup.

  • FiiO documents 3.5 mm and 4.4 mm outputs, desktop mode and a separate USB-C power input for the KA17.
  • Its stated output and recommended impedance ranges vary by socket and mode; compare the relevant conditions with your own headphones.

Questyle

The M15i illustrates a portable DAC/amp with two headphone connection options.

  • Questyle specifies 3.5 mm and 4.4 mm outputs and selectable gain for the M15i.
  • Check the connection and operating requirements for your particular phone or computer before choosing it.

Joybuy products

Related products coming soon.

Frequently asked questions

Do I need a USB DAC for lossless music on an iPhone or iPad?

Not for every lossless track. Apple Support says an external DAC is needed to listen to songs above 48 kHz on an iPhone or iPad, so check the track’s quality and your wired playback connection before choosing one.

Can Bluetooth headphones play Apple Music losslessly?

No: Apple Support says Bluetooth connections are not lossless for its wireless headphones. Use a wired playback path if lossless output is your aim.

How do I use a USB DAC with Qobuz on a PC or Mac?

Select the DAC as the computer’s audio output and enable the appropriate quality setting in Qobuz. Qobuz advises WASAPI Exclusive or ASIO modes for hi-res playback on a Windows PC; on a Mac, its guidance says to select the DAC as the default sound device.

Does a Mac always need an external DAC for hi-res audio?

No. Apple Support says compatible Macs have a built-in headphone-jack DAC capable of up to 96 kHz, while its Apple Music guidance identifies circumstances in which an external DAC is needed above 48 kHz. Check your Mac model and the sample rate you intend to play.