Hello there,

a first word to tell you the last mileI've done in speakers:
I am pleased with my silky sounding B&W DM4s. Well, as a rock head I want impact and sense of life. I've been advised to try 4311.

I'm now the owner of the serial 10027 and 10174.
My first exeprience is terrible. Lows, not much, highs, too much, way too much, and about mids... have that feeling of phase problem, if I move my head I can quickly shift from "deaf zone" to "mids! but only one side" like a story of peak waves and cancellations.
So my question is: can they be tricky to the point the way they are placed play that much? Do they sound that way? The fact the serial numbers are almost 150 units distant and that I've read they do changed the mids phase makes me wonder, and in my head or a real issue I d'ont know. I'm really worried in opening them, don't wan't to damage them therefore taking advices before surgery or sorrow...

Thanks fellows,
Matthieu