An apparatus for amplifying the sound of a stringed instrument includes, in its most basic form, a speaker attached to a strap that is adapted to be draped around a musician with each end thereof detachably-attachable to the stringed instrument. An amplifier circuit, according to a first embodiment, is connected to the speaker and attached to the strap along with a battery. A pickup wire is attached to an input of the amplifier circuit and to an electrical jack on the musical instrument. Portable amplification of the stringed instrument is provided. Other embodiments disclose a remote amplifier circuit and a remote battery that are attached elsewhere to the musician while the amplifier circuit output remains connected to the speaker that is always attached to the strap. A two-piece strap is disclosed as are a variety of different types of speakers that are attached to any preferred version of the strap.