If you own a piece of gear from TC Electronic—whether it’s a classic vintage Stereo Chorus pedal, a modern PolyTune, or a studio mainstay like the M5000 effects processor—you have likely turned it over at some point, spotted a sticker with a string of digits, and asked yourself: When was this made? Where was it made? Is it a genuine unit?
The TL;DR: There is no magic decoder website. TC4B means 2024. MX means Chinese-made transition era. Anything with a 3.5mm power jack is old. If the pots are scratchy, it doesn't matter what the serial says—just play the damn thing. tc electronic serial number decoder
Dating TC gear by serial number alone is difficult without internal factory records, but there are some historical benchmarks: The Ultimate Guide to the TC Electronic Serial
Second & Third Digits: Represent the month (e.g., "07" = July). The TL;DR: There is no magic decoder website
section for manuals that might list format changes for specific eras. Sweetwater
This is where the TC Electronic serial number decoder becomes your most powerful tool. Unlike companies like Fender or Gibson (which have public, decade-by-decade databases), TC Electronic has changed ownership multiple times—from its Danish origin to the MUSIC Group (Behringer) acquisition in 2015. This means serial number logic shifted over time.