The Behringer 172 is an Analog Phase Shifter, Audio Delay, LFO and Gate Delay 16HP Eurorack module. It is a 6-step phase shifter. The analog delay uses a BBD (Bucket Brigade Delay) chip. It also features a built-in LFO and a Gate Delay. These modules are based on the Roland System-100m modular synthesizer from the 1970s. I also (with a big fat fail) compare it to the Roland 572 module.