1 of the tops has a 60 x 40 spread, so if you angle them you have about a 120 degree spread.

As for the sound, everyone has their own taste. But when I tested it against a compact, all that were there said the Nano was cleaner sounding, volume apperared to be louder with the Bose, but we determined it was the over hype'd eqing of the compact

btw my compact will be on ebay later today for those interested