WiiM’s Ultra streamer was well-trailed ahead of the Munich High End show (which started today). There was also talk of a second launch at the show but we for one weren’t expecting the WiiM Amp Pro, an upgrade on the only-recently launched WiiM Amp. With shipments of both products beginning in Q3 we should know pricing soon. A shame WiiM couldn’t nail this final piece of the jigsaw in time for Munich. Let’s focus on the positives though; both products represent a further significant step in WiiM’s exciting journey. 

WiiM Ultra

After the Mini, Pro and Pro Plus streamers comes the WiiM Ultra. The most obvious differences from the Pro Plus are physical, with the Ultra sporting both a volume knob and 3.5” touchscreen. Round the back there are more connections, both inputs and outputs. And inside, the heart of the Ultra comprises an ESS ES9038Q2M capable of 32-bit/384kHz PCM (the same as in Musical Fidelity’s £10k Nuvista DAC). The array of connections is impressive, comprising: – 

    • Inputs         HDMI ARC, Line-In, Phono-in, and Optical Inputs
    • Outputs      Line-Out, Optical, Coaxial, USB, Subwoofer, and a headphone socket
    • Network     Bluetooth 5.3, WiFi 6E, dual antennae

Which to our thinking makes the Utra more of a hub than streamer, the ability to connect in a turntable particularly noteworthy. The case is also made from aluminium now. 

The 3.5” touchscreen displays App widgets, large album pictures, player UI, playing queue, presets, EQ, audio input and output, and device settings. It also allows users to customise the wallpaper and display the time and date during standby mode. Finally we mustn’t forget the built-in room correction technology that measures your room and adjusts the sound accordingly.

Overall the WiiM Ultra looks a worthwhile upgrade over the Pro Plus. Let’s hope WiiM continues to price its devices sensibly.

WiiM Amp Pro

The Amp Pro is a more modest uplift on the Amp, improvements mainly derived from the use of a better DAC chip (the same ESS ES9038Q2M as in the WiiM Ultra). This helps the Amp Pro measure better, with the signal-noise ratio up from 98dB to 120dB and Total Harmonic Distortion falling from -92dB to -105dB (0.002% to 0.0005%). 

Power remains at a respectable 60 wpc into 8 Ohms, doubling to 120 wpc into 4 Ohms. Inputs comprise Stereo RCA, Optical, HDMI ARC and USB-A. On wireless the Amp Pro matches the Ultra streamer, with Wi-Fi 6E and Bluetooth 5.3, plus two antennas for greater stability. Finally, as with the Ultra the Amp Pro’s case is crafted from aluminium, adding to a more upmarket feel. 

Both the Ultra and Amp Pro use the same Linkplay software as the rest of the range, albeit the Ultra can now handle Dolby Digital, bolstering its credentials for AV use. Even without it Linkplay’s capabilities are good, covering a wide range of music services together with an intuitive User Interface. When we reviewed the Mini, Pro and Pro Plus streamers we also found it to be rock steady (not always the case with other streamers). 

For a full comparison of all WiiM’s devices see the chart below. We look forward to hearing both models.