Editorial Review General Features: Used as drop-ins in motorcycle fairings, UTV, ATV, marine or outdoor systems. Ideal for a variety of powersports vehicles. Polypropylene woofer with rubber surround. Bridge-mounted 3/4 titanium dome tweeter. Lightweight neodymium magnets. Impedance: 4-ohm. Power range: 5-30 watts RMS = 60 watts peak power. Frequency response: 100-20,000 Hz. Sensitivity: 85.8 dB. Top-mount depth: 1-11/16 Removable grilles.