Do headphone amps improve sound quality?
Headphone amplifiers won’t improve the clarity or accuracy of your headphones but they will give the power needed to your headphones to deliver sound closer to the experience that they were designed to give.
Do I really need a headphone amp?
You only need an amplifier when your source’s maximum electrical output through the headphone jack—whether it’s a smartphone, laptop, or something else—is lower than what your headphones require to reach the output level you want.
How many watts do you need for a headphone amp?
Most headphone amplifiers provide power between 10 mW and 2 W depending on the specific headphone being used and the design of the amplifier.