garryh16, I'm having great difficulty thinking there is a problem with the speaker in the scenario you describe. Can you verify the sound cuts out at low volume and not high volume? Also, would you mind listing the other components, amp, preamp, source?
B&W 802 Nautilus speakers
When playing music with the B&W speakers they will cut out with no sound and then the sound will return. at low levels this happens but not with higher volumes and the sound and does not cut out. The amps that I'm using are brand-new so I want to know if you think the crossovers in the speakers are bad?