Here’s a full review on Mad Professor Amber Overdrive squeezzed into 3 minutes!
How to find out if the pedal is true bypass
youtu.be/Bbml2_1Y_Xc
Mad Professor on Thomann:
www.thomann.de/intl/mad_professor…
Check that Harley Benton guitar:
www.thomann.de/intl/harley_benton…