Technisat itself writes about the unit: System power 70 watts (RMS), output power stereo: 2.1 system 2 x 20 watts and 1 x 30 watts. Regardless of whether white or anthracite.
Like my predecessor: I am very satisfied with the unit. Enough power for a living room.

This is not explicitly stated anywhere. However, since the unit is called DigitRadio 600, I assume that it has 2x30 W output power. This would also correspond with the operating instructions: Output = 18 V, 3300 mA, would give 59.4 W. What I can say for sure: The unit has enough power and a very good sound. We are very satisfied.