Congratulations on your purchase of a Yamaha SPX90 Digital Multi-Effect
Processor. The SPX90 is an amalgam of advanced acoustical research and
digital technology designed to provide musicians and home recording en-
thusiasts with a wide range of exciting effects.
The SPX90 Digital Multi-Effect Processor utilizes highly refined LSI
(Large Scale Integration) technology to create natural reverberation. Not
only is its assortment of 30 preset effects comprehensive enough to suit
most studio and performance applications, the SPX90 also allows you to
create up to 60 additional effects and store them for instant recall.
Your SPX90 can create effects far beyond mere reverberation, though that
in itself is of a truly superior quality. A variety of echo, delay, and special
effects-each with comprehensive parameter adjustments-can be access-
ed at the touch of a switch. And as the SPX90 is MIDI-compatible, it can
be programmed to apply separate reverberation effects to a variety of
Your SPX90 Digital Multi-Effect Processor will prove extremely useful
in a variety of applications: acoustic electric, PA, MIDI instrument, and
home recording systems. In order to take advantage of the vast potential
of this component, we urge you to study this manual before connecting
the SPX90 to your system.
We at Yamaha thank you, and wish you years of enjoyment with your
EDIT: CHANGING PARAMETERS
REVERB & GATE
ROM CONTENTS AND CONTROLABLE