As the gorgeous-looking Hovland Radia has a balanced output stage, I took care during the measurements to ensure that the speaker terminals were not connected to ground or to each other. After the usual 60-minute preconditioning period at 1/3 power into 8 ohms, with both channels driven, the Radia's chassis was warm, and the circular perforated metal grilles over the internal heatsinks were too hot to touch.
The review sample of the Radia had the optional balanced inputs, with XLR jacks. The amplifier has low gain for a modern power amplifier, at 19.4dB…