Date Region Description Price Seller
AustraliaMad Professor Royal Blue overdrive pedal in good workin...$120.00
CanadaA note about the pedal's condition:This pre-owned 2025 ...$189.00
EUThe Royal Blue is a boutique overdrive pedal designed i...$170.01
EUPerfect condition. Full range overdrive, stacks really ...$130.94
EULa Royal Blue Overdrive de Mad Professor est une pédale...$238.79
Japan[Product Description]The Royal Blue Overdrive by MAD PR...$223.01
Japan[Product Description]The Mad Professor Royal Blue Overd...$222.87
JapanThe MAD PROFESSOR ROYAL BLUE OVERDRIVE FAC is now in st...$192.57
UKHere's my Mad Professor Royal Blue Overdrive, couple of...$153.80
UKIf you like Matt Schofield or low gain drives for blues...$177.12