McGee offers with the Harmony a high-performance hybrid amplifier, using both two 6N1 tubes for the preamplifier stage, ensuring a natural and warm sound, associated with transistors for the amplifier section, providing a power of 2x50W under 4Ω. Complete, the Harmony has wireless connectivity in Bluetooth 4.0 for broadcasting in particular from a smartphone, or WiFi to access files stored on your local network. The amplifier is also not stingy when it comes to connectivity, and offers stereo RCA, optical and coaxial inputs. On the output side, there are speaker terminals, but also stereo RCA (pre-out) and a 12VDC trigger output on 3.5mm jack.