What is the difference between the organ files with the names sCSA and CSA?
Both abbreviations are used in specific virtual pipe organ products, referring to the built-in reverberation (acoustics) it is using. CSA stands for Coupled Spaced Acoustics, and sCSA means Shorter Coupled Space Acoustics. sCSA is a shorter version of CSA so you can say that sCSA is more dry than CSA. They are both quite wet, but CSA usually indicates a very long reverb.