Which is a better speakers choice?

Hi everyone, i need help on to decide for my setup. My current rig are ProAc tablette anniversary driven by a Rega Brio R and the cables are full DH Labs. Which is the better way to go? Sell the proac and get harbeth p3esr to be matched with the rega brio r OR sell the brio r and buy a leben cs300x to be paired with the proac? I asking this coz the dealer of the harbeth and leben is far away from my place need to take a plane to get there so its very impossible for me to have a home audition.. Thanks for the help..