François Couture at AllMusic gave Quantum four stars out of five, calling it "a quantum leap above previous Planet X releases" and "a surprisingly mature album". He praised the album's stronger compositions and better diversity over previous Planet X material, and listed "Alien Hip Hop", "Matrix Gate", "Space Foam", "Kingdom of Dreams" and "Desert Girl" as highlights.[3]
In a 2012 article by MusicRadar, Dream Theater drummer Mike Mangini ranked the album tenth in his list of most influential drum albums.[4]
Track listing
All music is composed by Virgil Donati, except where noted