What is the difference between 2-ohm and 4-ohm car speakers?

[MacCora]

The difference between 2-ohm and 4-ohm car speakers lies in their volume output and driving capability. The lower the speaker impedance, the greater the burden on the amplifier. The use of car speakers is closely related to the car engine. Here are detailed explanations about car engines: 1. Overview: A car engine is the power source for a vehicle, determining its power performance, fuel efficiency, stability, and environmental friendliness. Depending on the power source, car engines can be classified into diesel engines, gasoline engines, electric motors for electric vehicles, and hybrid power systems. 2. Others: Common gasoline and diesel engines belong to reciprocating piston-type internal combustion engines, which convert the chemical energy of fuel into mechanical energy of piston motion to output power. Gasoline engines feature high rotational speed, lightweight, low noise, easy starting, and low manufacturing cost. Diesel engines have higher compression ratios and thermal efficiency, offering better fuel economy and emission performance than gasoline engines.