Hertz DCX160-3 6" Two-Way Coaxial Speakers 4-Channel Amplifiers while no RMS power rating

while no RMS power rating is published

The Cerwin-Vega VMAX10D4 is a 10-inch dual-voice-coil car subwoofer for adding dedicated low-frequency output to a vehicle audio system

The Gravity G8BD2 is a self-powered car subwoofer enclosure designed to add low-frequency output without requiring a separate external amplifier

or low-pass operation

Hertz DCX160-3 6" Two-Way Coaxial Speakers 4-Channel Amplifiers while no RMS power ratingThe Hertz DCX160 3 is a pair of 6 inch two way coaxial car speakers designed for replacing compatible factory door or rear deck speakers. Its coaxial layout places the tweeter and woofer in one assembly, helping simplify an upgrade where separate tweeter mounting is not desired. With a 4 ohm nominal impedance and 60 watt continuous power handling, it is suited to factory radio upgrades or properly matched aftermarket amplification. These Dieci series