| Signal Processors | Issue | Page |
| Alesis | Micro Enhancer | | Mar 88 | 144 |
| Alesis | Micro Gate | | Mar 88 | 144 |
| Alesis | Micro Limiter | | Mar 88 | 144 |
| Alesis | Microverb | Digital Reverb | Aug 87 | 134 |
| Alesis | MidiFex | Digital Effects Processor | Dec 86 | 136 |
| Alesis | Midiverb | Digital Effects Processor | Dec 86 | 136 |
| Alesis | Midiverb II | Digital Effects Processor | Aug 87 | 134 |
| Alesis | Midiverb III | Multi Effects Processor | Jun 90 | 104 |
| Alesis | Quadraverb | | May 89 | 118 |
| Alesis | Wedge | | Feb 98 | 103 |
| Analogue Systems | FB Filter Bank | Rackmount VCF Module | Nov 94 | 126 |
| Aphex | Aural Exciter Type E | | Dec 87 | 148 |
| Aphex | Aural Exciter Type C2 | | Feb 93 | 157 |
| ART | DR1 | Digital Reverb | Sep 86 | 145 |
| ART | DR-X 2100 | Multi-Effects/Dynamic Processor | Jun 92 | 146 |
| ART | FXR Elite | Multi-Effects Processor | Feb 94 | 167 |
| ART | Multiverb Alpha | Multi-Effects Processor | Nov 91 | 142 |
| ART | Multiverb | | May 89 | 118 |
| ART | ProVerb | Digital Reverb | Mar 87 | 132 |
| Avalanche Effects | Brianizer | Leslie Simulator | Feb 90 | 157 |
| BBE | 442 | Sonic Maximizer | Jan 90 | 133 |
| BBE | 462 | Sonic Maximizer | Jun 93 | 147 |
| Boss | SE-50 | Stereo Multi-Effects Processor | Jan 91 | 150 |
| dbx | 120XP | Subharmonic Synthesizer | Apr 94 | 128 |
| dbx | 296 | Spectral Enhancer | Apr 94 | 128 |
| Digitech | DSP-128 | Multi-Effects Processor | May 88 | 132 |
| Digitech | DSP-128 Plus | Multi-Effects Processor | May 89 | 118 |
| Digitech | TSR-24 | Multi-Effects Processor | Mar 94 | 144 |
| Digitech | VHM 5 Vocalist | Vocal Harmony Processor | Nov 92 | 146 |
| Dunlop | Model JH-4S Rotovibe | Leslie Simulator | Feb 90 | 157 |
| Electro-Voice | FX70 | Leslie Speaker Simulator | May 95 | 83 |
| Ensoniq | DP/2 | Multi-Effects Processor | Feb 96 | 121 |
| Ensoniq | DP/4 | Multi/Parallel Effects Processor | Jul 92 | 134 |
| Korg | A1 | Multi-Effects Processor | Oct 91 | 149 |
| Korg | A3 | Multi-Effects Processor | Sep 89 | 120 |
| Korg | DRV-2000 | Digital Effects Professor | Aug 87 | 132 |
| Korg | DVP-1 | Digital Voice Processor | May 86 | 120 |
| Korg | SDD-2000 | Digital Delay | Oct 85 | 110 |
| Korg | Tone Works G4 | Leslie Speaker Simulator | May 95 | 83 |
| Leslie | 122XB | Rotary Speaker | Jul 94 | 120 |
| Lexicon | Alex | Digital Effects Processor | Nov 93 | 136 |
| Lexicon | JamMan | Signal Processor | Aug 94 | 137 |
| Lexicon | LXP-1 | Programmable Audio Processor | Sep 88 | 132 |
| Lexicon | LXP-5 | Effects Processor | Nov 89 | 140 |
| Lexicon | LXP-15 | Digital Signal Processor | Feb 91 | 149 |
| Lexicon | MPX-1 | Multi-Effects Processor | Mar 97 | 79 |
| Lexicon | PCM 60 | Digital Reverb | Dec 84 | 99 |
| Lexicon | PCM 60 | Digital Reverb | Jan 88 | 140 |
| Lexicon | PCM 70 | Digital Reverb | Feb 86 | 125 |
| Lexicon | PCM 70 | Digital Reverb | Jan 88 | 143 |
| Lexicon | PCM 80 | Digital Effects Processor | Apr 95 | 90 |
| Lexicon | Vortex | Audio Morphing Processor | Jul 94 | 112 |
| Motion Sound | Pro-3 | Leslie Speaker Simulator | May 95 | 83 |
| Oberheim | Echoplex Digital Pro | Sample Looper/Delay | Jul 95 | 94 |
| Peavey | DSR 1000 | | May 89 | 118 |
| Peavey | Spectrum | Analog Filter Rack-mount VCF Module | Jan 95 | 115 |
| Peavey | UltraVerb | | May 89 | 118 |
| Quantec | QRS/L | Room Simulator | Aug 85 | 91 |
| Roland | DEP-5 | Digital Effects Processor | Jan 87 | 136 |
| Roland | SDE-2500 | Digital Delay | Oct 85 | 110 |
| Roland | SRV-2000 | Digital Reverb | Feb 86 | 124 |
| Sequential Circuits | Multi-Trak | Synthesizer/Sequencer | Aug 85 | 76 |
| Sony | DPS-D7 | Digital Delay | Feb 93 | 155 |
| Sony | DPS-F7 | Digital Dynamic Filter | Sep 93 | 101 |
| Sony | DPS-V77 | Multi-Effects Processor | Jun 96 | 98 |
| Sony | HP-MP5 | Multi-Effects Processor | Apr 95 | 96 |
| Spatial Sound | SP-1 | | Jul 89 | 141 |
| T.C. Electronics | M2000 | Studio Effects Processor | Oct 96 | 90 |
| Voice | Spin | Leslie Speaker Simulator | May 95 | 83 |
| Waldorf | Miniworks 4-pole Filter | MIDI Analog Lowpass Filter | Aug 97 | 119 |
| Yamaha | FX100 | Multi-Effects Device | Sep 89 | 122 |
| Yamaha | FX500 | Multi-Effects Processor | Sep 89 | 122 |
| Yamaha | R1000 | Digital Reverb | Dec 84 | 99 |
| Yamaha | REV7 | Digital Reverb | Feb 86 | 122 |
| Yamaha | REV500 | Digital Reverb | Jul 97 | 111 |
| Yamaha | SPX90 | Digital Effects Processor | May 86 | 122 |
| Yamaha | SPX900 | | May 89 | 118 |
| Zoom | 9001 | Multi-Effects Processor | May 93 | 141 |
| Zoom | Studio 1201 | | Mar 98 | 99 |
| Leslie Speaker Simulators | | May 95 | 82 |