Any of the SPX1000's 40 preset effect programs can be edited, re-titled, and stored in any of 59 RAM (user memory) locations. The stereo analog inputs and outputs can be switched to match -20 dBm or +4 dBm. The SPX1000 also allows selection of the following Digital I/O modes: Analog, PRE, Post, Digital.

In addition to the digital I/O configurations, the SPX1000 offers a choice of input modes that provide increased system flexibility: Stereo Normal, Stereo Reverse, Mono L, and Mono R.

The SPX1000 also provides simultaneous processing-up to 5 effects at one time. Both "series" and "parallel" combinations are provided. With a sampling frequency of 44.1 kHz, it delivers full, flat frequency response from 20 Hz to 20 kHz.

Preset Effect Programs 1 - 27:
1. Rev 1 Hall, 2. Rev 2 Room, 3. Rev 3 Vocal, 4. Rev 4 Plate, 5. Rev 5 Echo Room, 6. Early REF. 1, 7. Early Ref. 2, 8. Early Ref. 3, 9. Gate Reverb, 10. Reverse Gate, 11. Delay L,C,R, 12. Stereo Echo, 13. Stereo Flange A, 14. Stereo Flange B, 15. Chorus, 16. Stereo Phasing, 17. Tremolo, 18. Symphonic, 19. ADR-Noise Gate, 20. Pitch Change 1, 21. Pitch Change 2, 22. Pitch Change 3, 23. Freeze 1, 24. Freeze 2, 25 Pan, 26. Triggered Pan, 27. Distortion

Preset Effect Programs 28 - 40:
28. Multi (CHO and REV), 29. Multi (SYM and REV) 30. Multi (EXC and REV), 31. Plate + Hall, 32. ER+REV, 33. Echo+REV, 34. Chorus+REV, 35. Pan+Pan, 36. Compressor, 37. Low LVL Expander, 38. Exciter, 39. Stereo Pitch, 40. Stereo Freeze

See the full specs and product notes on Yamaha's own datasheet