I would welcome some advice regarding "wall wart" power adapters. My understanding is that as long as the DC voltage wall-wort-voltage matches the DC voltage requirement of the pedal device, then the amperage rating output of the wall-wort is not that critical? But, How close does the DC voltage have to marry from the output power supply to the pedal requirements, I have an old Ibanez Rock&Play RP200, this was a small portable cassette playback device you could plug 2 guitars into it, listen to and play along with a cassette. You could also add chorus and distortion as well as slow the tape to half speed.Its power rating is 2 by 1.5 AA batteries or an AC adapter that put out 3volts @ 200mA. I have a wall wort that puts out
2.4v DC @ 2.0A or another one that puts out 5.9vDC @ 400mA. Can anyone advise me of the risks of using any of these. Thanks DennisD


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