Had a pair of Gallo Nucleus solo speakers years back. One of the most natural sounding speakers I've ever had; Dynaudio driver and a 180 degree aluminum tweeter if I remember correctly. Weird looking but fantastic sounding. Should never have sold them.
In the late 90s I owned the model in the middle photo. I believe they were called the Nucleus Reference 2. I owned that same pewter color and also had a champagne colored pair. They were beautiful in a kindof unique industrial way and sounded great. Never should have sold them.
Apart from my subs it's the only pair of Gallos I've owned so I can't say, but I've read comments from those that have owned several models, including more current ones with better WAF, that these earlier versions are the best he's produced.
PS: I believe the cylindrical tweeter had 330 degrees dispersion, not the 180 mentioned earlier.
Way before Gallo, didn't B&O make a round speaker like that?Don