reverbsc got 4 buttons. input enhances the reverb on raw signal, so dampen input and enhance output
Besides that, since you are new in Forum
Welcome 47dev!
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions
If you like to introduce yourself, to the community, go here:
http://lmms.io/forum/viewtopic.php?f=4&t=4480