The term "amped" typically refers to a process called "amplified mastering." This involves boosting the volume or amplification of the audio signal during the mastering stage of production. Amplified mastering can make the music sound louder and more impactful, often enhancing its presence and intensity. However, excessive amplification can lead to issues such as distortion or loss of dynamic range, so it's important for mastering engineers to strike a balance to ensure optimal sound quality.