Years of experience and the right tools. A good ear for music, sound and your vision.
I do almost all of my mixing at Soundhouse employing the fantastic vintage gear: a Trident 80B mixing console and various vintage and modern gear.
A full list of gear can be found here: SOUNDHOUSE | Gear
Sound for Film and Games
Music, sound, editing, recording and effects. All the elements that bring two dimensions into real life.