Cisco 2960 CG advice

I wonder will there be a big improvement in SQ, if link up with one more 2960 CG thru optical fibre. Or just change to another Cisco model, any model recommend ?

Appreciate the feedback.

Many of the Cisco Catalyst switches have 1 or 2 SFP ports, so if you want to try using fibre it’s very easy.
As for changing sound quality, it might depend on what you are connecting to it, but I find no difference between fibre and regular Cat5e in my system.