If there was a roughness to the sound at your sessions it came from equipment, or set up, or the power supply ahead of the speakers. I once heard B&W's sound edgy--but it was the fault of the ac power, which I am sensitive too. The interesting thing is it's only possible to identify a poor ac power source when the balance of the equipment is good and the speakers are very revealing. These new B&W speakers are, like other excellent speakers, very refined. I feel lucky to have the chance to appreciate what modern technology is doing for us.