Year Albums Lineup Style
1982
  Billy White - guitar
Rick Colaluca - drums
Doug Keyser - bass
Jason McMaster - vocals
Progressive Thrash metal
1983
 
1984
Meltdown [Demo]
1985
Energetic Disassembly
1986
 
1987
Demo 1987 [Demo] Rick Colaluca - drums
Doug Keyser - bass
Jason McMaster - vocals
Ron Jarzombek - guitar
1988
  Rick Colaluca - drums
Doug Keyser - bass
Ron Jarzombek - guitar
Mike Soliz - vocals
1989
Control And Resistance Rick Colaluca - drums
Doug Keyser - bass
Ron Jarzombek - guitar
Alan Tecchio - vocals
1990
  Rick Colaluca - drums
Doug Keyser - bass
Ron Jarzombek - guitar
Scott Jeffreys - vocals
1991
   
1992
   
1993
 
1994
 
1995
 
1996
 
1997
 
1998
 
1999
  Rick Colaluca - drums
Doug Keyser - bass
Ron Jarzombek - guitar
Progressive Thrash metal
2000
  Rick Colaluca - drums
Doug Keyser - bass
Ron Jarzombek - guitar
Jason McMaster - vocals
2001
 
2002
 
2003
 
2004
 
2005
 
2006
 
2007
 
2008
 
2009
 
2010
  Rick Colaluca - drums
Doug Keyser - bass
Ron Jarzombek - guitar
Alan Tecchio - vocals
2011
  Rick Colaluca - drums
Doug Keyser - bass
Ron Jarzombek - guitar
2012
 
2013
 
2014