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I performed a full set of measurements on the Eversolo Play using my Audio Precision SYS2722 system. When I connected the amplifier's Ethernet port to my network, as is usually the case these days the Play updated its firmware to the latest version. Once the update to v1.5.30 was installed and the amplifier restarted, Roon recognized it as the Roon Ready "Eversolo Play." I then installed the Eversolo Control app on my iPad mini. I controlled the Play with both the front-panel touchscreen and the app. I also used the app to make sure that all the EQ settings were…

I used optical S/PDIF data for the digital input testing, as well as network data played with Roon and test tones stored on CDs. The Eversolo's optical and coaxial inputs accepted data sampled at rates up to 192kHz, and the digital inputs inverted absolute polarity at the speaker output. With the volume control set to "0dB," the output level from the speaker output with a 1kHz tone at –12dBFS was 5.64V into 8 ohms. This is 12.7dB below the clipping voltage into that load; the Play's DAC gain architecture is managed well. I examined the digital inputs' behavior…