Hi Mr.Vijay,
I recently purchased a pair of Wharfedale Diamond 10.1's and i am really pleased with the sound they produce. I have auditioned both the 9.1 and 10.1 before i made the purchase and all i can say is that both are really good speakers, The only difference i could make out was the 10.1's had better bass (Slightly better). Very transperent sound. But i would suggest you to audition both. These are speakers with exceptional value.