EDIFIER Bookshelf Speakers with High Frequency Response. The P17 is a set of passive bookshelf speakers that give you the freedom to amplify and press the boundaries of sound.   Please Note: An external amplifier or receiver is required.   Features Premium MDF wooden enclosure to reduce cabinet resonance 3⁄4 inch..

Edifier’s First Passive Bookshelf SpeakersBe a part of a first for Edifier. The P12 is a set of passive bookshelf speakers that give you the freedom to amplify and press the boundaries of sound.  Please Note:An external amplifier or receiver is required. Solid Built MDF EnclosureThe P12 passive speakers use..