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A good power supply is essential when putting together your pedal board. Aside from keeping things tidy around your feet they can also provide different voltages to match the individual pedal requirements. Pedals can be powered either by daisy chainging them together or by using an isolatied powersupply. An isolated supply should eliminate ground loops and any associated hum, as there's no grounding path between the pedals.

Electronic Drums have come on a long way since the classic hexagonal Simmons kit of the 80's. Kits now often use multisampled drums to replicate the different tone of drums hit at different volumes. Some kits use mesh drum heads which aim to replicate (almost silently) the feeling of hitting a real drum skin.

Percussion instruments designed to use synths and samples to generate their sounds.

Load Box (also known as Dummy Load) units can enable you to record the output of an amplifier without having to drive a cab to full volume, enabling you to drive amps hard to capture the driven tone and the sag effect of valve amps, whilst choosing to make little or no noise in the process. Some devices have DI outputs, whilst others also have a built in cabinet and mic simulator, which lets you sculpt your perfect tone without having to worry about noise complaints, acoustics or having an extensive mic locker.

Dedicated Headphone amplifiers are a must when you are dealing with high end audio, and a seperate DAC is used to convert your digital music back into analogue so you can hear it...