Vintage Digital & Analogue Studio Effects

Vintage Digital

Yamaha SPX990

Yamaha SPX990 Professional Multi-Effect Processor

The Yamaha SPX990, regardless of the name came after the Yamaha SPX1000 and continued the Yamaha tradition of providing superb quality. The Yamaha SPX990 effect systems offers 80 preset effect programs including accurate simultaneous natural reverberation and early reflections.


Epoch-making new effect like the main effect programs include multi-tap delay which can determine each level of time and balance, the round pan and intelligent pitch which can add harmony through internal recording on specific keys and scale. The temp, stereo echo and temp, quad echo also add new attractive effects to the Yamaha SPX990.

With a sampling frequency of 44.IkHz, the Yamaha SPX990 delivers full, flat frequency response from 20Hz to 20kHz for exceptionally clean, “transparent” effect sound and direct digital interfacing capability making it compatible with the most up-to-date sound system.

The preset effect programs can be edited, re-titled and stored in any of the 80 RAM memory locations. Individual 3-band parametric EQ and dynamic filter parameters are provided for each effect program for precise tonal tailoring.

In addition to the basic effect and EQ parameters, the Yamaha SPX990 offers a list of “internal parameters” which provide exacting control over the effect sound. The Yamaha SPX990 is also MIDI compatible, with a MIDI IN terminal that allows MIDI selection of effect programs and a switchable MIDI THRU/OUT terminal.

When switched to OUT, edited programs stored in the internal RAM can be dumped to a MIDI data recorder or other data storage devices. Programs thus stored can be reloaded when necessary via the MIDI IN terminal.

As an extra touch of convenience, the Yamaha SPX990’s analog input and output terminals can be switched to match -20dBm or +4dBm line levels, providing compatibility with a broader range of sound equipment. Convenient external data storage is provided by a card slot that accepts optional RAM cards that can be used to store effect programs.



Quantization: 20 Bit
Sampling Frequency: 44.1kHz
Frequency Response: 20Hz-20kHz
Dynamic Range: 106dB
THD: Below 0.005%

Dimensions: 480mm x 46mm x 324mm
Weight: 4.6kg

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Yamaha SPX990 Professional Multi-Effect Processor Reviews

Have you owned this product? Let others know what you thought of it.

Community Score


(3 Reviews)

Build Quality 87%
Sound Quality 83%
Usefullness 82%
Mojo/Funk 50%
Reliability 88%

What other owners say...


By Carlos

Build Quality 80%
Sound Quality 65%
Usefullness 65%
Mojo/Funk 50%
Reliability 90%

This one is still worth using today. Holds up better than your VST’s, just wish it had more knobs to tweak. Reverb is digital sounding but warm enough.


By Anonymous

Build Quality 80%
Sound Quality 85%
Usefullness 80%
Mojo/Funk 50%
Reliability 75%


By Shabeerali

Build Quality 100%
Sound Quality 100%
Usefullness 100%
Mojo/Funk 100%
Reliability 100%

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