Audio terminology can be very confusing and ambiguous. Below is a basic list of most common words related to audio specifications and terminology.
Acoustic suspension - a sealed or closed box speaker enclosure. Also referred to as an infinite baffle. Acoustic suspension speaker systems are generally less efficient than Bass Reflex or Transmission Line designs, but may offer greater accuracy with respect to bass tightness and reproduction.
Acoustics - the science or study of sound.
Alternating (AC) Current- currents that have a harmonic time dependence.
Ampere (A) - the unit of measurement for electrical current in coulombs per second.
Amplifier - an electrical circuit designed to increase the current or voltage of an applied signal.
Amplitude - the relative magnitude of a signal.
Attenuation - the reduction of an electrical signal.
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