So I bought a B&W P9 Signature yesterday, i’ve been listening to it and just wanted to leave my thoughts and impressions. The P9 signature is surely the best portable headphone on the market, no?! I am unaware of any other portable headphone that is more expensive, but perhaps there is. Also, I think the P9 Signature is great for home use too. In fact my other (much cheaper) headphones have now lost their appeal..I want to throw them in the trash because they sound so poor compared to the P9 Signature. I think the P9 Signature sounds neutral, with a slight bump in the midrange, but it doesn’t bother me at all and in fact I think some music benefits from it. I think the sheer scale of the sound stage is astonishing for a closed back headphone, even more so for a headphone that has 40mm drivers. There is just something overwhelming about the sound of the P9 Signature, I think orchestral music sounds really special with it. In my opinion, the saying “sounds like speakers in a room” is used far too many times, especially for headphones costing far less than the P9 Signature, but I gotta say that to me the P9 Signature almost literally sounds like speakers in a room. I think Bowers and Wilkins created a masterpiece!