All 2x12. The stereo models have little tweeters as well. These are the base, Magnatone model numbers. Other branded equivalents have different numbers for what are essentially the same circuit, so this gets complicated.
For my taste, the 260 cannot be beat. With the right speakers, it has a rich, beautiful clean sound, smooth and tasty overdrive. Plus that drool-worthy vibrato. They're all cool as hell.