Cross-feedback dual delay.

LYRA8-FX is an FX processor that can give you a significant part of the mysterious LYRA-8 sound.
LYRA8-FX consists of the FX section from the LYRA-8, expanded with CV controls and packed into a Eurorack module.
It contains a double modulated lo-fi delay with cross-feedback and the unique possibility of self-modulation, where the delay output signal modulates its own sample rate. Also, it packs a parallel distortion with CV control of the drive. The distortion is after the delay.
It’s much more than a delay – you can get a simple reverb, comb filter, chorus and much more cool FXs which are hard to describe.

https://somasynths.com/lyra8-fx/