Kool Audiophiles

Nguyen Customs Monitors (NCM) is a custom in-ear monitor brand based in Ho Chi Minh City, Vietnam. It designs and sells custom in-ear monitors for different needs and budgets, with models built around balanced armature drivers, dynamic drivers, or hybrid combinations. Its range includes single- and multi-driver options, from entry-level designs to models with up to nine drivers. The company describes its monitors as suitable for a variety of music genres, while noting that certain models may be designed for specific genres.

Customers can personalize their monitors by choosing custom in-ear monitor shell colors and faceplate designs, and may request laser-engraved artwork. NCM also offers reshelling services, allowing eligible existing monitors to be fitted with new shells, and upgrades for some of its own models. The site notes that selected third-party models may also be upgraded with additional drivers. Products are generally covered by a one-year warranty unless stated otherwise, and repair services for other brands may be available when replacement drivers can be sourced.