Dunlop MXR M238 Power Supply harp attack Works great with any guitar

Works great with any guitar amp

Start with the VOLUME and SQUASH at the 12:00 position

giving it the depth that is lacking and making the harp sound like a much bigger instrument

and speakers that do not have a good bass response

in a lot of ways it sounds better than a spring reverb tank

Dunlop MXR M238 Power Supply harp attack Works great with any guitarMXR ISO BRICK POWER SUPPLY M238 This power supply is light and pedalboard friendly with ten fully isolated outputs ranging from 9V to 18Vincluding two variable 6V15V outputsand special noise reduction circuitry for quiet operation. This pedal can be powered by the included ECB009 18 volt adapter. MXR M238 Manual