16,5cm compo set 2 weg 180 watts Woofer size (in, mm) 6 1/2 (165) Tweeter Size (in, mm) 3/4 (20) Frequency Response (Hz) 50-20k Max. Recommended Amplifier Power (Watt Peak) 180 Max. Recommended Amplifier Power (Watt RMS) 60 Mounting Depth (in, mm) 2 1/16 (5.25) Hole cut-out diameter (in, mm) 5 9/16 (14.15)