Check the listing for details. DEATH BY AUDIO Total Sonic Annihilation 2 Forced Feedback Loop Effects Pedal. Condition: New. Listed at 212.50 USD. The Total Sonic Annihilation 2 feedback loop noise effects pedal from Death By Audio works on a simple premise: what if effect pedals were patched back into themselves? What does it sound like for a filter to be multiplied by infinity? Or, what if your modulator was modulating its own modulations? The TSA2 creates a controllable feedback loop, causing your pedals to cycle back on themselves, feeding the output back into the input as much or as little as you want. Experience true sonic exploration: every unique pedal array will produce a vast world of textures and possibilities.If you've used a feedback loop pedal before, like the first edition of the Total Sonic Annihilation, then you know the vast world of insane sounds you can get.