Sphere reverb

Sphere is an algorithmic reverb plugin based on a modified Schroeder reverberator model.
The three main controls are used to adjust the reverb’s early reflections, damping, and stereo width properties. Furthermore, the user can control the pre-delay time (up to 250 ms), feedback amount, and the cutoff frequency of the built-in low-pass filter. 

https://www.sonicbits.com/sphere.html