Audio Z is a full service audio post production house. It is our sincerest hope that everyone will have a jolly good time with us, whether in person or virtually. The Difference. Located in the International Quarter of Old Montreal, Audio Z is a superb audio-post facility with state of the art equipment, located on the 26th Floor of the Stock Exchange Tower with a view overlooking the Saint Lawrence Seaway. Accessibility. Surrounded by many renowned restaurants and prestigious boutique hotels such as the W and the St James, we are at the center of Montreal’s cultural and artistic life. Montreal is a City of nearly four million citizens representing over 80 cultural groups. Hence Audio Z delivers this universal American-European flair, a distinct sense of creativity and yet is still able to offer North American efficiency.