Yamaha FX900 - Manual (Page 5)

2. The FX900: What It Is and What It Does
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Effects
The FX900 has four effect "groups" — DYN (dynamic), REV1
(reverb 1), MOD (modulation), and REV2 (reverb 2) — that
each contain several effects. Some of these "effects" are
actually a combination of several effects, such as the CDE
effect in the DYN group which combines compressor,
distortion, and equalizer. The chart below lists the effects in
each group with the three-letter abbreviated name that is
used on the FX900 display.
Group
DYN
REVI
MOD
REV2
Effect Description
CDE Compressor/distortion/equalizer
CMP Dual compressor*
ENH Dual enhancer
WAH Stereo wah*
PEQ Dual parametric equalizer
MBD Multi-band distortion
CDW Compressor/distortion/equalizer/wah
DST Stereo distortion/equalizer
PCM Mono pitch change
PCS Stereo pitch change
RV1 Reverb 1
ER1 Early reflections 1
DU Mono delay 1
EC1 Echo (stereo delay) 1
MD1 Modulation delay 1
MT1 Multi tap delay 1
CHO Chorus
FLG Pianger
SYM Symphonic
TRM Tremolo
PAN Round pan
RV2 Reverb 2
ER2 Early refections 2
DL2 Mono delay 2
EC2 Echo (stereo delay) 2
MT2 Multi tap delay 2
R+D Reverb + delay
* "Dual" programs have separate parameters for the left and
right channels, while "Stereo" programs have a single set of
parameters for both channels.
Each effect has a number of parameters which can be
adjusted to tailor its sound to your specific musical needs.
The effects and individual parameters are described in detail
in the "The Effects and their Parameters" section of the
manual, beginning on page 19.
Up to four effects, one from each effect group, can be
combined and connected as required by assigning each
effect group to one of the four "blocks" in any of the FX900's
11 algorithms — described next.
Algorithms
The sound of a number of effects used together depends to a
degree on the way the effects are connected — i.e. what
order they are connected in, and whether they are connected
in series or in parallel. The FX900 gives you total freedom in
how you connect effects from the four effect groups with an
innovative system of "algorithms."
The FX900 has five basic algorithm types that we'll arbitrarily
call the Chain, the Tee, the Square, the Tall Tee, and the
Stack. These are represented (in order, from left to right) by
the symbols accompanying the Algorithm Type Indicators on
the front panel. The Tee and Tall Tee types further have a
number of variations, as shown in the algorithm diagrams
below.
1. Chain
Algorithm 1
2. Tee
Algorithm 2 Algorithm 3
Algorithm 4 Algorithm 5
Algorithm 6 Algorithm 7
3. Square
Algorithm 8