Vintage Infinity Primus P153Bookshelf speaker

frequency response 58-20,000 Hz (±3dB) handles up to 100 watts sensitivity 88 dB 8-ohm impedance Metal Matrix Diaphragm® drivers minimize distortion 3/4" MMD tweeter 5-1/4" MMD woofer magnetically shielded for safe placement next to older tube TVs bass-reflex (ported) design black woodgrain vinyl finish 5-way binding posts keyhole slots for easy wall-mounting 7-3/8"W x 13"H x 10-1/2"D weight: 13.5 lbs. Once you hear the warm, rich sound of Infinity's Primus P153, you won't believe you got away with paying so little for it. With its Metal Matrix Diaphragm® driver technology and low-resonance enclosure, you'll hear music exactly as it was recorded. The Primus P153 produces sparkling high frequencies and detailed midrange from any type of music, at any volume level. And for a compact bookshelf speaker, the bass might just surprise you.