TC Electronic Flashback X4 Delay PedalFlashback Delay. The sounds, the vibe, TonePrints, the entire package it was a smash hit that rocked the world. But at TC, we're more about moving things forward and listening to the feedback from the guitar community. And so, when wishes for things like presets and tap tempo started rolling in, we listened. And boy, did we knock it out of the park. Think of your favorite delay sounds and chances are it's a TC sound. Our delays are the industry