Hi and greetings to all as this is my first post here I currently have a 3.1 system (Wharfedale Diamond 8.4 x 2 and Wharfedale 8 Center + Wharfedale Powercube 10+). I've been thinking to update my system to a 5.1 with one of the following sets: 1. Wharfedale Diamond 9.1 x 4 and Diamond 9CS (+ PC 10+) 2. Wharfedale Diamond 9.2 x 4 and Diamond 9CS (+ PC 10+) Now give me your opinions, which would be better? How does PC 10+ sound with Diamond 9s? And will there be a big difference in sound when moving from 8.4 (floor-standing) to 9.1/2 (shelf speaker)? Set 1. costs 470€ and 2. 560€. All comments greatly appreciated!