The Sonic ReFills collection comprises 20 volumes of Reason soundbanks, all produced by sample veterans Sonic Reality.
As you might guess by its name, this is a set of basses, though there are more than three. The sounds are organised into patches and these are grouped into three categories: Basses, Dynamic Bass, and FX and Synth Basses.
Every single sample can also be accessed individually. Each patch loads into the Combinator and comes with EQ, compression, maximiser and effects settings.