The Quantum Enigma is the sixth studio album by Dutch symphonic metal band Epica. It was released on May 2, 2014 by Nuclear Blast. It is their first studio album with new bassist Rob van der Loo, who replaced Yves Huts in 2012. The album's cover artwork is done by Stefan Heilemann, who also did the cover artwork for the band's fourth and fifth albums. Mark Jansen explains: "I have been listening to our new album and I can't get enough of it! It sounds more modern, but with all typical EPICA elements inside. Refreshing might be the right word. This album has also been the result of a real group effort." "It was great to see everyone being so motivated to create our best album!" "Even though the sound is more heavy , it's still a very catchy album as well. Some old influences from our earliest work, some references to 'Design Your Universe' and some new elements." "I can't wait 'till the moment you'll be able to listen to our newborn which makes us all very proud!"