Notice something different about the speaker in our photograph? No, we haven't placed it upside down: it's supposed to look like that, because the new Mission 750 bookshelf speakers have the same inverted driver arrangement as their more expensive siblings.
Mission calls it Inverted Driver Geometry, or IDG for short, and it places the mid/bass driver where you'd normally expect the treble unit (see the best stereo speakers we've tested for reference – but you get the idea) and vice-versa. According to Mission, "by placing the mid/bass driver closer to ear level with the treble unit positioned beneath, the path lengths from the two drivers’ acoustic centres are equalised so that the sound waves coincide at the listener’s head height." The result? Improved stereo imaging that "contributes to the speakers' seamlessly coherent and transparent sound."
