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Triple BA driver in-ear monitor
The Westone Audio MACH 30 in-ear monitor focuses on a warm, balanced sound character. Its three-driver system handles the bass, midrange and treble separately, keeping the sound image clearly structured yet cohesive. The 20 Hz - 18 kHz frequency response covers the defining part of the musical range, while its tuning focuses on a natural sound that remains comfortable over longer listening sessions.
Instead of excessive emphasis, the MACH 30 is built around stable, easy-to-follow reproduction of the bass, midrange and treble. This is especially important for an in-ear monitor, as detail clarity, tonal balance and a secure in-ear fit directly influence the listening experience.
The MACH 30’s proprietary three-driver system divides the full sound range into separate sections, with dedicated drivers handling the treble, midrange and bass. This allows each driver to operate within its own optimal range, resulting in cleaner frequency separation and a more orderly sound image.
The three-way design is complemented by two passive crossovers. These ensure that each frequency band reaches its assigned driver, while also helping to prevent individual ranges from becoming overly prominent and preserving the natural transition between frequency levels.
The housing shape of the MACH 30 is designed for a stable, comfortable fit. Its ergonomic design follows the natural shape of the ear, allowing the in-ear monitor to stay securely in place even during extended use. This is not only a matter of comfort, but also essential for sound quality, as proper fit directly affects bass perception, noise isolation and the stability of the overall frequency response.
The carefully designed fit also helps reduce discomfort caused by longer wearing sessions. The MACH 30 therefore features a construction that provides predictable use in the studio, on stage and during home listening.
The MACH 30 comes with a Linum BaX T2 cable, an important element in the world of premium in-ear monitors thanks to its easy handling and refined wearability. The role of the cable is not limited to signal transmission: in everyday use, flexibility, low weight and comfortable routing behind the ear also shape the experience. A well-chosen cable is less distracting during movement and helps the in-ear monitor fit more naturally to the ear.
The ultra-durable Estron T2 connectors provide a stable connection between the cable and the earphone housing. This is especially important for a device that is regularly connected, stored, transported or worn for longer periods. The reliable connection system contributes to long-term usability while preserving the clean, functional character of the MACH 30’s professional construction.
The MACH 30 accessory set is built around everyday use, cleaning, storage and fine-tuning the fit. In addition to the MACH 30 in-ear monitor and Linum BaX T2 cable, the package includes a maintenance kit with cleaning tools and a cable tie, a Mini Monitor Vault II protective case, as well as foam and silicone ear tips. These elements are not extras, but part of the complete user system that supports the long-term reliable and comfortable operation of the MACH 30.
3x balanced armature (BA)
1x BA for bass1x BA for midrange1x BA for treble
Three-way design
20 Hz - 18 kHz
91 ohms @ 1 kHz
110 dB @ 1 kHz
T2
132 cm
1.5 Ohm
~6 g
1x Westone Audio MACH 30 IEM
1x Linum BaX T2 cable
1x Mini Monitor Vault II protective case
5 pairs of foam ear tips5 pairs of silicone ear tips
1x Cable tie1x Wax Loop cleaning tool1x Cleaning cloth