And remmember; these older hornloaded systems are a lifelong endeavor and there is always something new to absorb. On the Joelist is at this time a very interesting discussion going on about the vintage JBL drivers and how to implement them. It is my contention that it takes huge amounts of money to buy something that will signifigantly improve on the JBL/Altec vintage drivers. But the best part is every thing you do to improve them brings positive and noticable results.