I'm always upgrading so I've got a mixed bag though all JBL brand.
TLX181 Mains 3 way much like the N310
D38 Surrounds Like the S38
Flix 20 Center 2 way
PSW110 Sub
I'm happy at the moment but I just got a 6.1 receiver so I'm thinking of a rear center channel speaker.
Greg
Mains:Rebuilt AR3a's Circa 1970 (Have had these for 32 years and still sound great)
Center:Klipsch KLF-C7 (recent addition)
Rear Surround: Axiom QS4
Sub: 54 Liter Sealed Cabinet Adire Alignment 12" Dayton DVC, Adire AVA250 (In Process)