While it is technically possible to install subwoofers in a car without an amplifier, it is not recommended as the sound quality and volume will be negatively affected. Amplifiers provide the power and amplification necessary for the subwoofers to produce their full sound potential. Without an amplifier, the subwoofers will be underpowered and lack the necessary drive to deliver the desired bass response. Additionally, the head unit in the car may not have the necessary power output to drive the subwoofers effectively, potentially resulting in distortion or damage to the subwoofers.
If you want to install subwoofers in your car, it is strongly recommended to also install an amplifier to ensure optimal performance and sound quality.
