Compared to the 9.1's not as much bass but they are smaller.
It depends what you want them for, when I first had them I loved them on the 2 channel system and as
fronts and on my first AV receiver yamaha rsv4*** (circa2004).
Were ok with my present yamaha as fronts until the 9.1's arrived and they were much better.
As a rear surround at the moment I have no complaints very atmospheric.
hope this helps