The very best stuff has changed little. It is the low and mid level equipment that has markedly improved. This is bad news for high end dealers because their costly products, even if they are the best, are harder to justify to the majority of buyers.
The Past 5 years
Digital, cables, ICS, speakers, amps, etc etc. Which area do you feel has shown the greatest growth in actual technology related to better (different) sound in the past 5 years? I'm thinking digital. Any takers? warren :)_