Walk the Walk: Audio and Video Terms

From AAD to Voice Coils (we don't have any "Z" terms yet), this glossary will break-down the alphabet soup and "audiophile-speak." Credit for some terms: TheWhippinpost, Aaron Miller, Audio Concepts

Soundstaging
Effect of hearing the soundsources - instruments, singers etc. - located in specific places horizontally and in front of and behind the plane of the speaker...
Tue, 14 Oct, 2014 at 9:19 PM
Spacious
Conveying a sense of space, ambiance, or room around the instruments. Stereo reverb. Early reflections.
Wed, 15 Oct, 2014 at 6:15 AM
Speaker Level
Taken from the speaker terminals. This signal has already been amplified.
Wed, 15 Oct, 2014 at 6:15 AM
Spectral balance
 Balance across the entire frequency spectrum of the audio range.
Wed, 15 Oct, 2014 at 6:16 AM
Speed
 A fast system with good pace gives the impression of being right on the money in its timing.
Wed, 15 Oct, 2014 at 6:16 AM
Spider
 The flexible material that supports the former, voice coil, and inside portion of the cone within the speaker frame.
Wed, 15 Oct, 2014 at 6:17 AM
Standing wave
 A buildup of sound level at a particular frequency that is dependent upon the dimensions of a resonant room, car interior, or enclosure. It occurs when the...
Wed, 15 Oct, 2014 at 6:17 AM
Steely
 Emphasized upper mids around 3 to 6 kHz. Peaky, non flat high frequency response. See Harsh, Edgy.
Wed, 15 Oct, 2014 at 6:18 AM
Stereo
 From the Greek meaning solid. The purpose of stereo is not to give you separate right and left channels, but to provide the illusion of a three-dimensional...
Wed, 15 Oct, 2014 at 6:18 AM
Strident
 See Harsh, Edgy.
Wed, 15 Oct, 2014 at 6:19 AM