FilterPong, ovvero un partita a ping pong col delay
NUX Duotime - Pedale stereo con tempo indipendente, ritardo analogico, eco nastro, ritardo digitale, ritardo di modulazione e ritardo verbo : Amazon.it: Strumenti Musicali
Delay, echo e riverbero
Ever wondered what the differences are between a Dual Delay, a Ping-Pong, and a 2-Tap Delay? Here's a chart that breaks it all down... : r/guitarpedals
Ping-Pong-Delay - YouTube
Atoragon's Guitar Nerding Blog: How to use Ping Pong delay to give a sense of depth to a sound
audio - stereo ping pong delay c++ - Stack Overflow