A headphone amplifier, or headphone amp, is a device that increases the power of an audio signal to drive headphones. It is typically used with headphones that have a high impedance, which require more power to produce sound. A good headphone amp can improve the sound quality of your headphones by providing a cleaner, more powerful signal.
There are many different types of headphone amps on the market, ranging from small, portable models to large, rack-mounted units. The best headphone amp for you will depend on your specific needs and budget. If you are looking for a budget-friendly option, there are several great choices available.