Type: 2.5-Way In-wall loudspeaker • Low Frequency Driver: Four 5.25” (130 mm) advanced Aluminum Matrix cone cast-frame woofers (JW13Al-4) • High Frequency Driver: 1” (25 mm) 2410H-2 Teonex® annular ring-diaphragm compression driver • Recommended Amplifier Power: 25 – 200W RM