The Naim Mu-so was one of the very best all-in-one audio systems I’ve reviewed, and this updated version is better in every way. The Naim Mu-so 2nd Generation gains HDMI with ARC, so you can pair it with your TV; and it supports Apple AirPlay 2, Google Chromecast, and Bluetooth, so you can stream music from just about any source. It has a bigger amp, more processing power, and better drivers than the original. It’s only a little more expensive—$1,599—and it sounds positively divine.
The 2019 version of the Naim Mu-so doesn’t look appreciably different than the original, but Naim says 95 percent of the system has been re-engineered, including a redesign of the speaker’s interior and its bracing and baffle molding that to squeeze out 13-percent more interior space while rendering the entire enclosure more rigid to suppress vibration and unwanted resonance. The new model still sits on an acrylic base with a dimmable LED lighting up its brand, and that massive aluminum heatsink on the back of the unit remains to deliver passive cooling. The oversized control wheel has been carried over, with a new proximity sensor that lights up its touch-sensitive controls the instant you place your hand near it.