As you have undoubtedly already worked out, the WiiM Pro Plus is an upgraded version of the massively popular WiiM Pro audio streamer. The WiiM Pro Plus sports an AKM 4493SEQ premium DAC, which, we're told, achieves a leading level of low distortion (120 dB (A-wt) SNR, THD+N of -110dB from 44.1k to 192k) and wide dynamic range thanks to AKM's Velvet Sound Technology. It supports up to 768 kHz PCM and DSD512, with PCM/DSD automatic switching.

As well as an uprated digital-to-analogue convertor, there's also a trick analogue-to-digital path headed up by a TI Burr-Brown Audio PCM1861 ADC, achieving up to 192kHz/32-bit digital output to convert analogue sounds from devices such as record players, MP3 players or TVs into digital format. Linkplay Technology, WiiM's parent company, states this results in “clearer, more detailed sound”.

Furthermore, the WiiM Pro Plus is said to use an ultra-low noise clock, power supply, and careful PCB layout to achieve less than -110dB THD+N performance for analogue audio output, reducing any unwanted noise or distortion in the sound.

The WiiM Pro Plus seems an effective way to update a 'legacy hi-fi system' and features RCA line in and out, SPDIF optical in and out, COAX out wired LAN and Wi-Fi. As well as offering  Siri, Alexa, and Google voice control, WiiM Pro Plus supports AirPlay 2, Alexa Casting, Spotify Connect, TIDAL Connect, Qobuz, Amazon Music, TIDAL, Deezer, TuneIn, iHeartRadio and more. It also features Chromecast Audio, which lets you cast YouTube Music, TV audio, radio stations, podcasts and local content directly from your favourite Chromecast-enabled App. Additionally, the WiiM Pro Plus will soon follow the Pro with Roon Ready certification.

The WiiM Pro Plus, sold as a bundle with the voice remote, will be available in August 2023, priced at £219. We have one to review, so stay tuned for our thoughts.

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