The drivers and crossovers are in excellent physical shape. The cabinets are professionally made, but not by Altec. They're practically the size of refrigerators! One sounds awesome, the other will play through the woofer or tweeter, but not simultaneously, and never when using the bottom connectors (one set of leads connected to the top drives the tweeter, the other, also connected through the top connectors, drives the woofer. I'm sure the solution is simple, but I'll troubleshoot it tomorrow. These are legendary systems, and I can't wait to hear them.