The current incarnation of what was formerly known as the Solesides crew. The only album released under the name Quannum so far is Spectrum.
Apparently, the crew felt they needed a new name to better define themselves in the context of the 21st century.
Quannum are: Lyrics Born, Lateef the Truth Speaker (or Latryx, as they are known collaboratively), Chief Xcel, Gift of Gab, and DJ Shadow.
Quannum is also the core stable of the Quannum Projects label.