A/V receiver

Device that transfers audio and video signals to another device; contains inputs for all the audio and video sources and outputs to one or more sets of speakers and one or more monitors

acoustic

The properties or characteristics of a room that determine sound will be transmitted

Acoustic suspension

Speaker enclosure that reduces bass distortion and creates accurate bass response

Acoustics

The production, control, transmission, reception and effects of sound in any environment.

Ambience

The portion of sound that is created from reverberations from the surrounding area

amplifier

A device that increases the power of a signal by use of an external energy source

Analog

A signal that contains information using non-quantized variances in frequency and amplitude