matthewpiano:PP - I think the A75 is simply a more powerful version of your A65 is it not? In which case it should have a fairly earthy and organic sound that might well suit the OP...
Sorry to the OP. I didn't look properly, I thought it was the A70....
A75 is more powerful by 10 watts. I think, also, although could be wrong, Arcam actually ceased production before the A65 which tells you something. Certainly non of my fav retailers ever had it on dem or in stock. I remember asking Infidelity about the A75, and bluntly said: don't bother. In simple terms if you want the A75 buy its smaller sibling.
Back to this warmth thing with Arcam, it would be a fair comment about the Alpha range: They were pretty rich in character but the DIVA range is far less so. If it is warm then so is Creek and Roksan...
...Joelsim would probably back me up on that: he commented about his new set-up sounding oven-like compared to the Arcam character.