Single Effect PedalA single effect pedal as the name suggests, produces only one type of effect. Though it only produces one effect, you have more control over the effect it produces, compared to a multi-effect. SFX pedals also tend to sound better because of its true bypass.
Multi-Effects ProcessorA multi-effects processor is a lot like a full pedal board, digitalized, and rolled-up into one large multi-stomp box. You have less control over effects, but you can use multiple effects all at the same time - all on one patch. Another good thing about multi-effects is that the new ones have amp-modeling and or cab-modeling. Amp-modeling allows you to mimic the sound of a certain popular amplifier, while cab-modeling allows you to mimic the sound of a popular cabinet. I highly suggest buying a multi-effect processor for beginners. It's cheaper than buying a load of SFX pedals, and it'll give you something to work with while you're still trying to figure out what kind of sound you want to produce. P.S. not all multi-effects processors are large, have expression pedals, amp and cab modeling, and multiple foot switches.
ClassificationsEffects may be classified into four different categories. Overdrive/ Distortion, Modulation, Dynamic, and Equalization. Overdrive/ Distortion: these effects boost your instruments sound to produce a distorted or driven sound. Suggested buys: