The P4 from Audioengine is a pair of high-performance passive bookshelf speakers that works with digital hybrid amplifiers, stereo and surround sound receivers, integrated and tube amplifiers, and whole-house music systems.

Each hand-crafted cabinet houses a 4" Kevlar woofer and a 0.75" silk dome tweeter, designed to provide a full frequency response with plenty of detail. A bass-reflex port provides additional bass response. The rear panel features standard 5-way binding post connectors for use with a variety of sound systems. The speakers can be placed on a shelf or stand, or mounted on a wall. They are magnetically shielded for interference-free use near video monitors and other electronic devices.