I’m not familiar with your native language, but the two speakers are very good, and each age their own strengths, and at this price, weaknesses. I can only highly recommend an audition if you can - it’s your ears, and you have to live with them!
As to the amplifiers, a good separate will always respond well to better amplification. The speakers can only perform as well as the amplifier will allow, so the better amplifier you can get, the better the speakers will sound.