The massive Iron Maiden catalog has now been re-mastered for the iTunes music store. Their 15 studio albums, along with two compilations and two live albums picked by Iron Maiden bassist and song writer Steve Harris, have been re-mastered from their original analog source.

Said Harris on the process:

“The Mastering For iTunes procedure allows the listener to experience the music as close as possible to the way the artist intended it to be heard. So of course I was very keen for the Maiden albums to be mastered in this way. The records have been available digitally before, when this medium first became a platform for music distribution but that was mastered with CDs in mind. The iTunes process involves a different approach and it’s great to finally deliver the music to our fans in as close to a pure and accurate sound as we could possibly achieve.”

Harris, who disliked the sound of Iron Maiden’s 1980 self-titled debut album, says that the new version is much better; “the guitars are louder, the drums more substantial and the overall tone is so very much improved in my opinion.” The new mastered albums are available now in the iTunes Music Store.

Fans can soon buy a set of Iron Maiden headphones to listen to their new mastered for iTunes albums, too. They were announced earlier this year at the Consumer Electronics Show (CES) in Las Vegas, NV, though no official release date has been set.