Re: Boss Pedals and Adapters
Yeah, it's both marketing, and the assumption that the user won't likely understand what is required or what the published consumption specifications on the back plate really mean. The voltage is actually not as critical and can be higher than 9V (or a tad lower in many cases) if you prefer on most pedals, the exception being ones that may use digital processing. On something like an opamp type overdrive pedal for example, you could most likely use a supply as high as 24v. The one rating you want to pay more attention to is the current rating. You want to at least have a power supply that can match it, or one that is rated to provide excess. For example if you have a pedal rated to have a total current consumption of 9v@ 300ma, you want a supply that can at least source that or more. So if you find a supply that is rated at 9v 500ma, you are golden, however if you find one rated at 200ma, you may be asking for some problems as this may cause excess heat rise, voltage drop, and eventual failure of the power supply.