2: General Operation; Memory Configuration; Selecting An Effect/Memory Location; Bypassing The Effect - Yamaha SPX900 Operation Manual

MEMORY CONFIGURATION

The SPX900 has a total of 99 internal memory locations.
Locations 1 through 50 are READ-ONLY MEMORY
containing 50 preset effect programs. These locations cannot
be written to or changed in any way. The preset effect
programs contained in memory locations 1 through 50 are:
1. REV1 HALL
2. REV2 HALL&GATE
3. REV3 ROOM 1
4. REV4 ROOM 2
5. REV5 ROOM 3
6. REV6 WHITE ROOM
7. REV7 VOCAL 1
8. REV8 VOCAL 2
9. REV9 PLATE
10. REV10 PLATE&GATE
11. REV11 TUNNEL
12. REV12 CANYON
13. REV13 BASEMENT
14. PERCUSSION ER
15. GATE REVERB
16. REVERSE GATE
17. PROGRAMMABLE ER 42. MULTI (CHO&REV) 3
18. DELAY L, R
19. DELAY L, C, R
20. STEREO ECHO
21. STEREO FLANGE
22. CHORUS 1
23. CHORUS 2
24. STEREO PHASING
25. TREMOLO
Locations 51 through 99 are READ/WRITE MEMORY which
can be used to store your own edited versions of the preset
programs.

SELECTING AN EFFECT/MEMORY LOCATION

1. Effects and memory locations can only be selected when
the utility mode is not active (the UTILITY KEY indicator
is not lit). If the UTILITY key indicator is lit. press and
hold the UTILITY key until its indicator goes out and the
utility mode is exited.
2. Press the program select
decrement the memory location number shown on the LED
display. Hold either of these keys down for continuous
incrementing or decrementing. The name of the program
corresponding to the currently selected memory location
will be shown on the LCD. Note that at this stage the LED
memory number display is flashing, indicating that
although a new location has been selected. its contents
have not yet been recalled.
6

2: GENERAL OPERATION

26. SYMPHONIC
27. ADR-NOISE GATE
28. PITCH CHANGE 1
29. PITCH CHANGE 2
30. PITCH CHANGE 3
31. MONO PITCH
32. FREEZE
33. PAN
34. TRIGGERED PAN
35. COMPRESSOR
36. DISTORTION
37. EXCITER
38. MULTI (ECH&REV) 1
39. MULTI (ECH&REV) 2
40. MULTI (CHO&REV) 1
41. MULTI (CHO&REV) 2
43. MULTI (SYM+REV) 1
44. MULTI (SYM+REV) 2
45. MULTI (SYM+REV) 3
46. MULTI (EXC&REV) 1
47. MULTI (EXC&REV) 2
48. PLATE+HALL
49. ER+REV
50. ECHO+REV
or
key to increment or
3. When the desired memory location/effect has been
selected. press the RECALL key. The LED memory
number display will stop flashing and the selected effect
will be engaged.

BYPASSING THE EFFECT

There are two ways to switch the selected effect in and out: 1)
with the control panel BYPASS switch and 2) with a
footswitch connected to the connector-panel BYPASS
footswitch jack. An optional Yamaha FC5 Footswitch can be
used for foot-bypass control. In either case – when the
control-panel BYPASS key or BYPASS footswitch is pressed
-the LED in the BYPASS key will light to indicate that the
selected program is currently being bypassed and the input
signal is directly routed to the output terminals (i.e. the effect
is OFF). Press the BYPASS key or footswitch a second time
to turn off the BYPASS Key LED and turn the effect back
ON.
ACCESSING & EDITING
THE PROGRAM PARAMETERS
Each SPX900 program has 4 different groups of parameters
which are accessed by pressing the corresponding parameter
select keys:
ACCESSES
KEY
PARAM The main effect parameters for each program.
These parameters will vary according the type
of program.
The BALANCE and OUT LVL parameters for
LEVEL
each program.
The equalization or dynamic filter parameters
EQ
for each program.
INT PARAM Special "fine control" parameters for each
program. These parameters will vary
according to the type of program.