The installed coaxial drivers for the highs and midrange on the front are supported by a dedicated subwoofer with a flow-optimized bass reflex tube for the lower frequency range. At 5.25 inches, this woofer is even larger than the one featured in the flagship model "Meisterstück". The biggest difference to the other Sonoro models seems to be the missing CD player.
However, the Primus still offers connections to a wide variety of music sources. These include FM and DAB+ digital radio as well as access to over 25,000 worldwide Internet radio stations and podcasts. Streaming services like Spotify Connect, TIDAL, Napster, Amazon Music, Qobuz, and Deezer are also supported. Bi-directional Qualcomm aptX™ Bluetooth® enables wireless music playback in high quality.
Physical connections are available via USB, 3.5mm jack, RCA line-in, optical, headphone jack, and RCA line-out.
The Primus is also said to be particularly easy to use thanks to the direct selection buttons on the front, which is made of metal. The hand-sanded wooden housing with the Sonoro-typical rounded corners is finished with a piano lacquer.
The Primus all-in-one system weighs 9.8 kg and is about 45 centimeters wide. In Germany, it will be available from the end of March onwards in the color matte black with a black front for around 700 Euros.