boreas

I know I'm a little late to the party on this thread (okay, a lot late) but I just restores a set of Model Twenty-Fours and a set of Twenty-Four Series II speakers. These speakers are identical to the Model Twenty-Twos. As near as I can tell, the Twenty-Fours were simply Twenty-Twos repurposed and renamed for inclusion in the Model Twenty-Four compact stereo. The difference between the two version of the Twenty-Four, like the two versions of the Twenty-Two, is in the crossover. The Twenty-Four has the same inductor and 4uF cap as the Twenty-Two and the Twenty-Four Series II has the same inductor, 8uF & 16uF caps and 3 ohm resistor as the Twenty-Two A. One other difference between the two types of Twenty-Four not found in the Twenty-Twos is that the Twenty-Four Series II has RCA plugs instead of binding posts. After rebuilding the crossovers in both pairs, I gave each pair a careful listen. I found the Series IIs to be slightly smoother and more balanced than the first generation Twenty-Four so I redid the crossovers in the Twenty-Fours to Series II specs. They're quite good speakers and have surprisingly good bass, considering the size of the woofer.

My L780 IIs had many, many dents in the grilles when I got them. Some of them were severe enough that the paint had flaked off. What I did was to place the grilles face down on a padded carpet and gently push the dents out with my thumb(s). It was surpisingly easy, a little tougher when the dent was right over one of the creases in the grilles, and it came out perfectly. After that I removed the emblems and shot them with a can of Krylon satin black spray paint. It was a perfect match to the original finish. Snap the emblem back in place and you're done.