3rd order crossover on a Cary Silver Oak One

Ijust bought a pair of Cary Silver Oak One speakers. They have beautiful cabinet, very good components (seas woofers and tweeter. I still have my Proac D15 and after installation of the Cary, i was disapointed.Their soundstage is not very convincing and compared to the Proac, they sound not as crispy, dull. The manual from Cary Audio mention that the speaker is a PHASE STABLE and use a 3rd order crossover and the tweeter crossover point is 3 kilohertz. My impression is that the manufacturer wanted a speaker comfortable for home cinema, that everybody around can ear not only the listener sitting at the sweet spot, but this was made at the detriment of audiophile quality. I would like very much to keep them, they are of very good quality construction and design, and i suspect the problem come from crossover design. Somebody have suggestions, can i change without too much problems the settings or the crossover itself ?