Subspace by Zynaptiq

Subspace is a “super-lush sounding, and totally streamlined” reverb plugin.

It is based on the allpass reverb module found in Zynaptiq’s Morph 2, Wormhole and Adaptiverb plugins, and features just two controls: a switch that selects one of four presets – aptly named A, B, C and Z – and a dry-wet control.