Speaker Rockford Prime R165-S Nominal Impedance (Ohms): 4-Ohm Frequency Response (Hz): 60Hz - 20kHz Midrange Nominal Diameter (cone/diaphragm): 6 #34; Midrange Mounting Depth: 1.97 #34; (50.1 mm) Tweeter Nominal Diameter (dome/diaphragm): 0.5 #34; (13 mm) Tweeter Mounting Depth: 1.06 #34; (26.88 mm) Power Handling (RMS): 40 Watts RMS 80 Watts MAX Crossover: Tweeter High-Pass (HP): 4.5kHz @ 6dB/octave Sensitivity (dB @ 1W/1M): 89 Grille/Trim Ring Included: Yes Mounting Hardware: Yes Shipping Weight: 5 Lbs. (2.26 kg)