The Klipsch P-17B is a bookshelf speaker from the Klipsch Palladium Series. It is equipped with a 0.75-inch titanium diaphragm high-frequency compression driver mated to a Tractrix horn and hosts a 4.5-inch aluminum diaphragm mid-frequency compression driver also coupled with a Tractrix horn. The P-17B also features a 7-inch high-output aluminum Rohacell/Kevlar hybrid cone woofer for low frequencies. The cabinet is built of constrained layer MDF and has a bass-reflex enclosure through a rear-firing port.