Lexicon MC-1 - Manual (Page 8)

Effect An effect is a configuration that determines how the MC-1 will
process an input signal. The MC-1 contains 24 effects: Panorama,
Nightclub, Concert Hall, Church, Cathedral, Party, 2-Channel, Music
Surround, Music Logic, Logic 7, TV Matrix, Pro Logic, THX Cinema,
Mono Logic, 5.1 2-Channel, 5.1 Music, 5.1 Logic 7, Dolby Digital, THX
5.1, DTS 2-Channel, DTS Music, DTS Logic 7, DTS Film and DTS THX
5.1.
Parameter Each Effect has a set of parameters (controls) that charac-
terize it. Parameter settings can be changed to customize each Effect
for your room and listening taste.
Effect Parameter values are stored/recalled with each Effect. Some
examples are: Subwoofer Level and Vocal Enhance
System parameter values are not associated with a particular Effect
and their values do not change when a new Effect is loaded. An example
is: Speaker Configuration.
PCM FX The term PCM FX (Pulse Code Modulation Effects) is used to
describe all of the effects which are compatible with two-channel input
signals (analog or digital).
Two-Channel We use the term two-channel rather than "stereo"
because a two-channel input can contain monaural, stereo or matrix-
encoded stereo sound depending on how it was mixed.