Question about Yamaha Ns-Aw592

I am thinking of moving the zone 2 of my hi-fi system to the garden seating area. This and the garden are around 8x15m which should be covered with sound. Mostly with crisp background music and also sometimes for a party-like atmosphere. It is important to me that the sound is not jarring or anything like that. Rich sound even at low frequencies. Are the Yamaha NS-AW592 sufficient for this or better the Bose 251? Thanks for your feedback