The DJ explained that the follow-up to 2009's Ready For The Weekend is coming very soon and that he is using vintage synthesisers for the material.
Asked if the album is close to completion, Harris told Music Radar: "Not yet. We're looking at a release date soon.
"It's been a pretty busy year - touring, producing for other people, remixing - so I've not been able to spend as much time in the studio as I'd have liked."
He continued: "I think the main thing I've tried to do with this album is not cover the same old ground. It's still sounding quite epic, but that whole 'I'm Not Alone' thing has been done to death.
"Loads of people have jumped on that sound. I want to do something different. I want to challenge myself and feel in danger of messing up. Sometimes, you need to do that to get the best out of yourself."
Harris also admitted that the majority of the album has been created through his laptop, but he has "been pulling a few vintage bits of kit off of the shelves" and experimenting with an old Roland Juno-106 and a Korg MS20.
The producer has teamed up with US star Ne-Yo for his new single 'Let's Go'.
> Example, Calvin Harris working on new song together
Listen to Calvin Harris and Ne-Yo's 'Let's Go' below: