Yamaha FX550 - Manual (Page 27)

Chapter 4; Effect parameters
Delay + Reverb D + R
This effect uses delay and reverb effects in parallel. The same signal is fed to each effect, then
the output of each effect is mixed.
DLYL
Left Channel
Delay Time
0.1 ~ 750 msec
DLYR
Right Channel
Delay Time
0.1 - 750 msec
FB Feedback Level 0 - 1 0 0 %
The amount of effected signal that is fed
back into the effect.
L/R L/R Balance L50 - L=R - R50
If the DLYL and DLYR parameters are set to
the same (or similar) delay times, this effect
may sound like a signal phasing problem. If
so, adjust the L/R parameter to correct it.
RVT Reverb Time 0.3 ~ 40 sec Reverb length.
PDLY Pre-delay 0.1 - 190:0 msec
HF
High Frequency
Ratio
1 - 10
WID Sound Image Width 0 - 1 0
D/R
Delay/Reverb
Baiance
D50 - D=R - R50
MIX Mixing Baiance 0 - 1 0 0 %
0 = dry signal.
50 = 50% delay + reverb 50% dry signal.
100 = 100% delay + reverb.
LVL Output Level - oo, -30 dB - +6 dB Sets the output level of the effect.
Typ Filter Type HPF, LPF
Frq Cut Off Frequency
HPFTHRU,
32 Hz - 1.0 kHz
LPF: 1.0 k H z - 1 6 kHz,
THRU
INPUT L ID-
INPUT RO
DELAY
REVERB
R
L
MIXER
-O OUTPUTL
-O OUTPUTR
D + R Block Diagram
25