The two pictures are of a Restored/Upgraded Altec Model 19 pair. Will post more soon.We have built a number of pairs of Altec crossovers in our shop. Either as upgraded restorations or full custom builds. In all cases the replacements were a dramatic improvement over the original factory units. The components in the originals are of a much lower quality level and because of the age in most cases drifted pretty far from the original specs. Using higher quality components and lower gauge "Air Core" inductors makes the Altec Drivers come alive. Current building our second pair of 16ohm 604 networks based on a slightly modified Master Labs network posted in a reply to this thread. Will try and post some pictures soon.
Dutch