Let’s get the only potentially controversial change out of the way first: iHM79 is bigger than its predecessor, now using 2.5-inch diameter speakers rather than 2-inch ones, with a compacted width of roughly 4.75 inches versus 2.5 inches—a non-trivial physical change that iHome has used both to improve the speaker drivers and the strength of the housing. The egg-like shape of the prior speakers when compacted has transformed into twin…