Custom Audio Mutation offers repairs, restoration, resurrections, and modifications/mutations to most tube amplifiers. If your tube amp is over 10 years old a good restoration is in order. This includes cleaning, re-cap of the power filter section and bias section, as well as replacement of worn components to bring your favorite tone machine back to better than new operation! Rates vary so send an email firstname.lastname@example.org or call 1-(234)-788-6141. Cost and turn around time depend on the requested work being done to the amplifier!