I have a pair of 802D3. I do not know the size of your room, but they are surprising efficient if your amp can provide the needed current. You want current not power. I started with a Hegel H590 integrated that puts out 301watts into 8 ohms and 590watts into 4 ohms, I moved to a Luxman 590AXii which is 30 watts class A into 8ohms and it sounded much better and I sold the Hegel.
I am now using a Primaluna EVO 400 Power amp (70 watts in ultralinear) driven directly by my Chord Dave DAC and it is the best of those combinations, I have owned Krell 302 EVOs as well earlier this year (300w into 8 that doubles in 2) and they did not sound as good as my current setup.
You want current, not wattage, for example the bass from my 70 watt Primaluna tube amp is MUCH better , stronger and tighter than my Luxman Integrated, which you will see many videos on Youtube videos driving Magico S5s. The Luxman had much stronger bass than my Hegel H590 which had a 4000 damping factor. The Primaluna Evo 400 pairs very well with the 802D3 as it is very detailed and airy, with incredible separation between instruments and singers.
I am now using a Primaluna EVO 400 Power amp (70 watts in ultralinear) driven directly by my Chord Dave DAC and it is the best of those combinations, I have owned Krell 302 EVOs as well earlier this year (300w into 8 that doubles in 2) and they did not sound as good as my current setup.
You want current, not wattage, for example the bass from my 70 watt Primaluna tube amp is MUCH better , stronger and tighter than my Luxman Integrated, which you will see many videos on Youtube videos driving Magico S5s. The Luxman had much stronger bass than my Hegel H590 which had a 4000 damping factor. The Primaluna Evo 400 pairs very well with the 802D3 as it is very detailed and airy, with incredible separation between instruments and singers.