@danimaz, perhaps your speakers need more watts?. Generally Luxman gear is conservatively rated. But regarding integrates I am not sure, the measurements for Luxman 509x are here https://www.stereophile.com/content/luxman-l-509x-integrated-amplifier-measurements.
Seems like approaching 200 watts THD shoots to 2%. Not able to find measurements for Simaudio 600i v2.
Dynaudios have a reputation for needing lot of power. May be contour is different. Depends on how loud and how far are you from them.
Seems like approaching 200 watts THD shoots to 2%. Not able to find measurements for Simaudio 600i v2.
Dynaudios have a reputation for needing lot of power. May be contour is different. Depends on how loud and how far are you from them.