Naturally, I'm partial to my design and particularly from a price/performance standpoint. If you're going to use the PSD2002 with the Alpha 10, you can use the same crossover as other models but make sure to use the appropriate Zobel. Another neat option is ribbon tweeters, but they're pricey too.Once you head up this path, it isn't long before you're into a more powerful system all the way around.