Portable preamplifier for musical instruments

Abstract

The present invention relates to a portable preamplifier for musical instruments which is particularly useful for electric guitars. The preamplifier has a body which houses an electronic system for amplifying and shaping the frequency spectrum of signals from the guitar and a battery for supplying power to the electronic system. A short, shielded input audio cable is permanently attached to the preamplifier body, is electrically coupled to the electronic system input, and terminates in an input phone plug. The preamplifier is also provided with an output phone jack. The preamplifier is portable and can be physically attached to a guitar strap or to the musician's clothing. When the input phone plug is inserted into a guitar output jack and an instrument cable is inserted into the preamplifier output phone jack, amplified and spectrally shaped signals from the guitar can be delivered via the instrument cable to a guitar amplifier/loudspeaker, mixing board, or other audio signal device. Portability allows the shielded input audio cable to be short while giving the musician freedom of movement.

Dependencies are inferred from the claim text.