TruAudio creates a 4-inch version of the Ghost in-ceiling speaker-- one fitting the footprint of standard can lighting, allowing it to match with other design elements in the ceiling.
The company says the 4-inch Ghost follows a request from an interior designer.
Like all Ghost in-ceiling speakers the 4-inch version includes a magnetic grille with a 2mm reveal. It features a white glass fibre woofer/titanium tweeter and a polypropylene woofer/silk soft dome swivel tweeter.