I love these little metal-cabinet babies. Got a pair of M-7's a pair of M-7W (wood veneer) and a pair of M-3.5's. As I recall, the 77's were a bit cheaper than the 7's, but IMHO they are all under-appreciated little gems. Most things Radioshack rather suck, but these (and some huge, 15-inch home audio speakers) are really good stuff. I'd use them for desk-top studio monitors, for sure- they may not have a perfectly flat response, and they may color the sound here and there (who knows, really?) but I'd use 'em.