Mad Professor Simble Review

Known as one of the top 4KDPs (4 knob Dumble Pedals), The Mad Professor Simble has a long and involved history concerning it’s development that is well documented. Whether it was the side by side testing with a real Dumble, painstaking circuit research and some pretty savvy marketing or just the overall amazingly smooth tone, SOMETHING has got people buzzed about this pedal. Continue reading “Mad Professor Simble Review”