Thank God, some companies, like Sundown for example, change stuff up so often it becomes annoying. I ordered a SAZ-2000 about 2 month after they released, 3 months later I wanted another. And poof, they are discontinued. So 5 months after initial release they are gone...... This is one advantage companies like Kicker, JL, and Rockford have over "most" smaller companies. They keep the same product for 2-3 years. I don't think I have to worry about my ZCON's changing much in the next few months, because SSA kicks ass.