Hi ajb,
A "good-sounding in-ceiling speaker" is an oxymoron. Simply insetting a speaker driver into a wall or ceiling inherently compromises sound quality and neutrality. And the sound quality will vary with every installation--it's quite unpredictable.
Why not consider wall-mounting one of our quadpolar models (QS8, QS4)? You can get them in white with tan grilles. They're not that obtrusive.
Paradigm's in-walls didn't sound bad at all when I heard them in a "fake" wall installation some years ago. But is "not bad" good enough?
Regards,
