Please note that Harbeth mounts the mid/bass driver behind the baffle on the P3, m30.2, and m40.3. The Compact 7 and SHL5 mount on the front.
I have the P3, m30.2, and SHL5. There is no distinct sonic differences between the models.
Kilpisch + Ojas kO-R1
I get the cooperative marketing thing (ooh, aah, esoteric aura...), but my simple question is this: why would you mount the woofer behind the baffle rather than in/on it? A cursory review of Ojas' other speakers indicates this is a common design philosophy. Doing so must create measurable, if not audible, diffraction. Is there another potential benefit to doing it this way that offsets the diffraction, or is it simply about reducing the manufacturing costs?