I am a user of Onkyo 602E reciever(6ohms, 120W, 7.1ch).
And I am going to buy a new speaker, Sonus Faber Grand Piano Domus.(4ohms, 30W~200W, 90db).
But some audio experts say that I need to change the reciever as well.
I don't want to change personally.
Can you give me a guide line to set up well?