Calista C3-S Security System Folded Horn

A speaker design where the speaker points back into the cabinet and bounces around finally coming out large ports in the front. It is intended to maximize low frequencies in a relatively small cabinet.

Hard Disk Recording
The recording of digital audio onto a hard disc.

Calista C1-9 Home Theater Harmonic Distortion
The presence of harmonics in the output signal of a device which were not present in the input signal.

Frets
Vertical metal wires which sit vertically on the guitar neck.

Calista C2-88 Projector Echo Send Control
A control to send the signal from the input module to the echo chamber or effects device via the echo buss.

Foot Switch
A switch placed on the floor and pressed by a musician to do various functions.

Error Detection
The process of discovery that sonic information bits have been lost in digital audio. Bose

Inverse Square Law
Simply stated, the fact that in an un-obstructed area (like an open field) the sound pressure level will drop to half-pressure (-6 dB) every time the distance to the sound source is doubled.

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