Top 10 best-selling Simulator

The Mooer Acoustikar is a very compact acoustic simulation pedal that should fit on any pedal board. Now electric guitarists can choose from three common acoustic guitar sounds.

With a press of the button, the Electro Harmonix MEL9 Tape Replay Machine changes your instrument into a Mellotron! It has 9 voicings and it's suitable for guitar, bass and keyboards. Easy to use and highly versatile!

Haven't got enough space left on your pedalboard for the EHX Attack Decay? No worries, chances are this Pico edition will fit just fine.

Sadly, and like many vintage effects pedals that are no longer made, you're incredibly unlikely to come across the original '80s Reverse Simulator. By way of apology, Electro Harmonix offer the Attack Decay stompbox.

The Digitech Mosaic is a clever pitch-shifting stompbox that can transform your 6-string guitar into a 12-string. It adds an octave to your low notes, and doubles high notes. It even comes with a 9V adapter.

EHX's B9 Organ Machine makes your guitar or keyboard sound like a vintage organ. With 9 tonewheel and transistor presets, including rotating speaker effect.

BOSS' WAZA Tube Amp Expander ensures you get the best out of any tube amplifier with a power output of up to 150 watts. It's a load box, an analogue power stage, a mic emulator, a cab simulator, an IR loader, and a recording interface in one!