About Us

At KJ West One our mission is always to be a showcase for the world’s best audio brands.

We are proud to say that for more than 50 years we have been at the leading edge of hi-fi excellence, offering best in class equipment from across the globe to ensure that our clients enjoy an unrivalled experience when choosing their home entertainment system.

Spread across two floors measuring 3,000 sq ft in total, KJ West One is a large open showcase area, specifically designed to exhibit the world’s best audio visual equipment.

There are three purpose-built studios, each with an individual ambience, where our customers can immerse themselves in the most comfortable, private and relaxed listening environment.


Established as KJ Enterprises in 1965, later trading as KJ Leisuresound, then as KJ West One, the hi-fi showroom has been located in Marylebone, Central London since the early 1970s. It rapidly earned its reputation as the best audio store in London.

Originally occupying premises in neighbouring Wigmore Street, the company needed to expand and in the 1980s moved to its current site in New Cavendish Street.

The architecture of our famous ‘clam-shell’ shop front has become iconic in its own right, offering its own unique welcome.

During the summer of 2020 we completed the major refurbishment of our showroom to provide world class demonstration facilities and to once again set up the KJ brand standard.

Nowadays KJ West One has become a hub for worldwide audiophiles and music aficionados to discover and enjoy the world’s best hi-fi equipment.

Whether you are building a full system from scratch or upgrading an existing one, we have the knowledge to discuss every step of the process.