Nickyg63:Does anyone know if there is a difference between the 2?
Yeah, and a big one. The 2000 is a Masterlink speaker, the 2500's are powerlink-connected.
So you will need an extra Beolink active to connect the 2500's via Masterlink. The only other Masterlink speaker I know of is the BL3500.
Soundwise I can't comment as I've never heard the 2000's.
hx