If your preference is for ultra-modern clear as crystal tapping sounds, the Ashdowns may sound to your ears, 'wooly'. It is true, their natural tone tends to err on the warm and valvey side, but they are very versatile. I toured with an ABM 500 and matching 8x10 for years and I would not tolerate a wooly, indistinct amp.
It's becoming quite a lazy stereotype, almost up there with 'Rickenbackers have no bottom end' and 'Gibsons sound like mud'.
It's all swings and roundabouts. I dislike Ampegs. And the much admired Genz-Benz Streamliner, for example, sounded awful to me when I played through it - [i]in my own style[/i] - but I don't doubt for a moment it is a very high class and high quality amp. It just doesn't suit me. Everyone's style and ears are different, and nobody is right or wrong.