Hi guys, I received my 4331's this week ( ebay $950 au ). They are a little rough in the cabinets though. The drivers all work fine, and I removed the bass drivers for a peek inside and was happy to see these 2231-a's were reconed to 2235's. I think the horn drivers have seen better days but I will fit new diaphrams in them and see how they go. What I did do was desconnect the wires to the horns and ran the wires out through the vents and hooked them up to my Altec 511-B's with 909 drivers. WOW what a difference, the 909's are a great match to the 2235's, it made the vocals and mids sound very natural and life like. I would like to have the crossovers looked at and update any components that may be needed. Is there any notes availible to help me in this direction?.