If you hit KPA and you will hear springs- then this is spring reverb
So the first part of audio sample was recorded with Hall Reverb engaged with mix ~15% and time about 2.5 and for the second part of audio sample I played with these settings
[Blocked Image: http://s21.postimg.org/vrdniskjb/page.jpg]
[Blocked Image: http://s27.postimg.org/tgu46nx4z/mix.jpg]