Speaker Type: Two-way In-Wall Loudspeaker • Low Frequency Transducer: Dual 5-¼” (130mm) cast-frame, advanced aluminum matrix cone woofers • Mid/High Frequency Transducer: D2-derived 1” (25mm) 2409H annular ring, Teonex® diaphragm compression driver • Maximum Recommended Amplifier Power: 300 watts RMS•