I've considered the SA15 but the reviews I've read say it is no better than the 8001. Crutchfield also has it for a discount price. Does any one know of any reviews comparing the SA15 with the 8001?

As far as the treble is concerned on the 8003, I'm comparing it to the 840c and a modified Music Hall 25.2 which are known for their detail resolution and crisp treble.