OK so I have just completed the audio modifications to this speaker. Connected them to up to my B&O Beosound 4 hifi unit. After only two hours of music playback, I have one word to say…
WWOOWW !!!
Zero cabinet coloration, crazy holographic soundstage with super width, depth, height (basically the walls of my room vanish along with the position of the speakers themselves). Pure and mellow with incredible detail retrieval. Real ‘in the room sound’ with actual instruments taking up spaces in various areas of the living room. Very reminiscent of my modded Martin Logan CLS IIz electrostats.
Unfortunately I went through Hell to get to these babies up and running. Had an undiagnosed issue which kept forcing the speakers into Standby Mode. So after sending the internal amplifiers off to a registered Bang & Olufsen repair centre; it turned out that the problem was caused by a loose connection on the long jumper wires that connect to the individual drive units. This was fixed by wrapping some PVC tape tightly around the bunch of wires at the point where they protrude out of the connector plug.
The other issue I had was that the internal settings were incorrect and off kilter. Bass and treble potentiometers were set too high, resulting in excessive brightness and slightly distorted bass. However this was sorted out after I reduced the levels