Actually, on a decently designed set of loudspeakers, the analog crossovers have a much better chance of sounding "good" compared to a "generic" active crossover. Crossovers do more than just send high frequencies to the tweeters, and low frequencies to the bass drivers. They are also used to "shape" the response from each driver. Many drivers have peaks and dips in their frequency response, and there are special filters used in a well designed crossover that can account for those abnormalities, to provide a smoother frequency response. There are a host of other frequency response abnormalities that can be corrected in the crossover, but it would take all day to list them all. The analog crossover also will be designed to account for the relative offset of the drivers (the woofer's acoustic center is further "behind" that of the tweeter). This insures proper phase alignment, which drastically improves imaging. The crossover can also be used to shape the impedence and phase profile of a speaker, which is particularly important for speakers that are to be used with tube amps, to allow an easier load for the amplifier.

Keep in mind that when someone designed your $1000 pair of speakers, they did more than just slap a couple of drivers in a box with some old crossover they had sitting on a shelf. *One would hope* they specifically chose a set of drivers, and used some very sophisticated software and measurement equipment to get the best possible performance while staying within their budget constraints. By comparison, an active crossover is a shot in the dark!

my 2¢
Jason