Quote:
Originally Posted by Colonel Monk The manual in my Space Echo cautioned against using exp. pedals other than Roland, saying that damage could result. |
That's standard marketing/legalese BS. You'll also notice that nearly every mass-market pedal includes the warning to only use the same brand's power supply, or damage may result. They are (a) trying to sell their own accessories, and (b) covering their butts in case someone tries to present a warranty claim after plugging a welding torch into their pedal.
OTOH it is important to be sure that whatever expression pedal you choose actually performs the function needed. Not only is polarity important, but some devices require a passive potentiometer type pedal, while others require an active, powered expression control. Of the powered ones, there is a wide range of possible voltage amounts necessary- there's no one standard between brands.