matthewpiano:Both excellent speakers and I don't agree with Dan that the B&Ws are 'better in every way'. They are, however, very different in their presentation and I can see exactly why the 685s would suit Dan's tastes far better. Mezzos - Certainly the better looking speaker. Very refined with good detail levels and a natural presentation. The music is laid out in front of you rather than being pushed forward, making the Mezzos excellent for longer listening sessions. They need amplification with good clarity levels which is why they work so well with the better Cambridge amps such as your 650A. The Mezzos are superb for acoustic music, classical music and jazz. In better recorded rock they unravel the complexities of music such as Yes and King Crimson superbly, but they aren't going to set the pulse racing with the rock 'n roll end of things and they certainly don't flatter less impressive recordings in any way. 685s - Big speakers and a little unwieldy looking. Big, involving sound with excellent bass depth. They project the sound into the room more and really highlight the vast amount of detail they extract from the disc. They don't have the same balance with large acoustic ensembles that the Mezzos exhibit, but they are more effective at propelling a bass-line and projecting the excitement of a big rock production. More fussy about stands than the Mezzos - the Mezzos will be fine on something like Atacama Nexus 6, but the 685s really need Partington Dreadnoughts or B&W's own stands. Personally, given the synergy with your amp, I would choose the Mezzos but as has already been said you have both at home right now so you need to make the decision based on your listening.
I have to agree with every single word from your description.. As for the looks - my girlfriend thinks the exact opposite from me and you, she likes the 685ïs better from the two.
What I like about the Mezzos is the balance and warmness in sound, they sound more mature than 685ïs. I can imagine they are easier to listen to mainly for the longer sessions. The bass of Mezzos is not as big as 685ïs, but it is beautifully refined, tight, very accurate. However, when I listen to something like Mastodon or Opeth, they lack the necessary aggression and drive, where 685ïs have plenty of. Also, I am missing these very subtle details I can hear with 685ïs.
As advised, I am going to mass fill the stands today and give it a go again. This selection process is getting very tiring, I need to decide what to keep and what to sell as through the sale I want to finance a purchase of a network streamer and a Dacmagic. I never thought it was going to be so difficult to decide