Question Logitech z 506 or z 906 for realistic surround sound while not caring for the bass?

[Tasoskerrr]

Hey! I’m considering buying one of those. I only need some basic, not loud bass, and I’m interested mostly at the quality of realistic sound from the speakers. Would z 506 be enough for that or I should consider z 906? I would really appreciate your answer, no idea what to order right now.

purpose: gaming on ps4 pro