A device that has a power amplifier and speaker in a case (or in separate cases) to reproduce the signal put out by an electric instrument (such as an electric guitar) and to allow the instrument to be heard.
Acoustic/Acoustical
Having to do with sound that can be heard by the ears.
AcousticsThe behaviour of sound and its study. The acoustics of a room depend on its size and shape and the amount and position of sound-absorbing and reflecting material.
Brooks Hi Fi reviews Direct box
Used in line to convert a high impedance signal into a low impedance signal.
Central Processing Unit
1) The main "brain" chip of a computer that performs the calculations and execution of instructions.
2) The main housing of a computer that contains the "brain" chip as opposed to other pieces of the computer system such as keyboards, monitors, etc.
Brooks RM 909 Diffraction
The breaking up of a sound wave caused by some type of mechanical interference such as a cabinet edge, grill frame, or other similar object.
Clip
The action of deforming a waveform during overload.
Frets
Vertical metal wires which sit vertically on the guitar neck.
Lead Sheet
A written chart showing the melody, lyrics and chords of a tune with full musical notation.
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