Under the Reviews section of the search engine, you will find our vast archive of SOS Product Reviews (hands-on tests) and Previews dating back to January 1994. To help you make a buying decision, you can further refine your searches using the following REVIEW Subjects/Topics:

• Accessory  includes difficult-to-categorise stuff like DI boxes, mains leads, cable testers, and so on.
• A-D / D-A Converter
• Books / Publications / CDs / DVDs / Websites
• Computer
• Computer Recording System  eg. Soundscape, Yamaha DSP Factory, Lexicon Studio and others.
• Drum Machine
• Effects  (hardware-only) includes multi-effects, reverb, delay, echo, flange, phase, ring modulation, harmonisers, pitch-shifters, vocoders etc.
• Electronic Drumkit
• Expansion Board  includes hardware boards for samplers, sound modules etc.
• Format Converter
• Guitar Amplifier
• Hardware Controller
• Hardware Sequencer
• Keyboard  includes all instruments with a keyboard (synths, Mellotrons, home keyboards, organs) except where they are more accurately described as a 'Keyboard Workstation'.
• Keyboard Workstation  includes instruments like the Roland Fantom and Yamaha Motif ranges, Korg Trinity, Kurzweil K2000 etc that combine keyboard synths with onboard sequencers, sampling and such-like.
• Microphone
• MIDI Controller  includes MIDI guitars, wind controllers, fader-style control surfaces (like Steinberg's Houston) but not keyboards or complete electronic drum systems like the VDrum.
• MIDI File Player/Recorder  does not include hardware sequencers that permit MIDI data editing.
• MIDI Interface
• Miscellaneous  if you cannot find what you want in other Subject categories, then try here.
• Mixer  includes Digital, Analogue and Line-level hardware mixers.
• Monitor Controller
• Monitors
• Multitrack Recorder
• Patchbay
• PC / Mac Soundcard
• Power Amplifier
• Preamp  includes Mic Preamps and other kinds.
• Processor  includes hardware-based Voice Channels, EQs, Compressors, Gates, Enhancers, other dynamics processors, De-essers, noise reduction suystems etc.
• Recording Channel
• Recording System
• Sampler  hardware varieties only; see 'Software' for soft samplers.
• Sampling Workstation  includes device's where the emphasis is on sampling rather than sequencing.
• Sequencing Workstation  includes hardware devices like the MC505 that have sequencers plus sundry synths, controllers, effects but no keyboard.
• Software: All
• Software: Audio Editors
• Software: Effects + Processors
• Software: Instruments
• Software: Other
• Software: Scorewriters
• Software: Sequencers + DAWs
• Software: Utilities
• Sound Module  includes all non-keyboard hardware devices (except PC soundcards) the principal function of which is to produce sound, whether by synthesis or sample playback. Modular Synths have their own category.
• Sample / Sound / Song Library  includes any product (MIDI Files, cartridges, voice cards, soundbank disks) that provides new sounds/patches for an instrument.
• Speaker Simulator
• Stereo Recorder
• Synchroniser
• Synthesizer
• VST Instruments
• VST Plug-ins