What is a Reamp Box?

A reamp box is an audio device used in recording to send a previously recorded audio signal back through a guitar or bass amplifier. It converts a line-level signal from recording equipment into the instrument-level signal that an amplifier expects.

In a typical recording setup, a musician may record a clean direct signal from a guitar or bass using a DI box. A reamp box then allows that recorded signal to be routed from the audio interface back into a real amplifier or effects chain. This makes it possible to experiment with different amplifier tones, microphones, and effects after the original performance has already been recorded.

Reamping is widely used in professional studios because it allows producers and engineers to refine guitar and bass tones during the mixing stage. By re-recording the same performance through different amplifiers or settings, they can explore multiple sonic options without requiring the musician to perform the part again.