Does anyone know why most in-wall speakers are rectangular and 2 & 3-way configurations and ceiling speakers resemble car speakers? The home we purchased has in-wall speakers (SpeakerCraft 6.0 RT) in the ceiling. They sound like nothing but mid-range. I will be building a box to enclose them, which should help. I'm wondering if I should just replace them with, "normal", speakers. Any experience or opinions on using in-walls in the ceiling?