These speakers are excellent... I bought them on special offer for 460euro and combine so many things a good speaker is supposed to do which is really rare at this price. They are driven by a nad c325bee with tidal source and schiit modi 3+ dac. They have the ability to play cleanly at high volumes, so it would be good to have an amplifier above 50 watts that can also drive 4-ohm speakers because although their specifications are 6 ohms, their impedance often drops to 4 ohms and requires strong currents from the amplifier. They have impeccable tonality for their category, and all instruments sound with their natural timbre. The piano, which is generally difficult for most speakers, is a breeze for the Oberon and sounds incredible. Placement is easy and they do not require toe-in because they have wide dispersion. However, they do need some distance from the rear wall (at least 20 centimeters).
Their strong points are classical music, jazz, blues, and electronic, but overall, they can play all genres because they are balanced speakers. If you sit very close to the speakers, they may sound better acoustically with the grilles, which surprisingly do not distort the sound in a bad way and in some cases even improve it (for example, with old mediocre recordings).
They are also very good for movies, with clear dialogue and plenty of detail and intensity in the effects.
So, in summary... The speakers are definitely worth a listen, and consider investing in a good amplifier within your budget to fully enjoy them. It would be good to test the amplifier and speakers together before making any purchase to avoid surprises. It's not just about power in amplification, but also how it will match with the speakers it will be driving.
I forgot to mention that they require a break-in period of several hours (around 100 hours). I mention this because initially their sound may disappoint you, but after 10-20 hours, you will realize that the sound not only improves but transforms at all levels.