Luxman L-590AXII $7250 has a good reputation and longevity but is relatively low powered.
As what Celestial Sound has suggested, the rated output numbers on paper as published by few manufacturers are conservative and do not reflect the actual output in real life, particularly Class A designs. This applies to the Luxman L-590AXII as well. The test bench of the Luxman L-590AXII performed by Hifi News shows that the power output is more than triple the official quoted figures in the specification.
Official on paper = 30W (8 ohms) / 60W (4 ohms)
Actual test bench results = 95W (8 ohms) / 165W (4 ohms)