10 cm speakerset 2 weg 90 watts Woofer size (in, mm) 4 (100) Tweeter Size (in, mm) 1/2 (13) Frequency Response (Hz) 70-20k Max. Recommended Amplifier Power (Watt Peak) 90 Max. Recommended Amplifier Power (Watt RMS) 30 Mounting Depth (in, mm) 1 11/16" (46.5mm) Hole cut-out diameter (in, mm) 4" (101.5cm)