A-Lex is based on the 1962 novel A Clockwork Orange by Anthony Burgess, which was adapted into a film version by Stanley Kubrick in 1971.

The album was recorded in São Paulo at Trama Studios and mixed at Mega Studios during 2008, since February through the process of composition[2] until August when the band finished the mixing process and revealed the track listing and album title.

A-Lex is available in three versions: a deluxe digipak with an embossed cover, a regular jewel case and on a vinyl gate-fold LP.

New drummer Jean Dolabella, who replaced Igor Cavalera, was well received by fans and media.

AllMusic gave A-Lex 4 stars out of 5 and called it a "vicious, loud sledgehammer of an album".