Quick answer

The Westone Audio MACH 70 delivers a wide, smooth soundstage with commanding bass and an ergonomic fit for all-day wear, while the Campfire Audio Clara offers a unique hybrid design co-developed with musician Alessandro Cortini. Choose the MACH 70 for fatigue-free long sessions across any genre; pick the Clara if you want a distinctive, artist-tuned listening experience.

Driver design and sound signature

The Westone Audio MACH 70 uses a 3-way, seven-driver balanced-armature system with single low, dual mids, and quad high drivers. This all-BA approach delivers large and wide extension with a smooth top end and commanding bass, making it a versatile performer across all music genres. The soundstage is impressively wide and detailed, yet remains controlled and non-fatiguing.

In contrast, the Campfire Audio Clara is a hybrid model developed in collaboration with Nine Inch Nails member Alessandro Cortini. While the exact driver configuration is not specified, its hybrid nature typically blends dynamic and balanced-armature drivers to produce a different tonal character. The Clara's tuning reflects Cortini's artistic input, which may appeal to listeners seeking a more colored or expressive sound.

Comfort and cable quality

Westone Audio's ergonomic design philosophy allows the MACH 70 to be worn all day with no ear fatigue. The included linum estron UltraBaX cable is lightweight and flexible, reducing cable noise. For those who prefer a different cable, the Westone Audio EPIC replacement cable (50 inch) offers a twisted, low-noise design with a 2-pin connection, compatible with many Westone models.

The Campfire Audio Clara's fit and cable details are not fully specified in the catalog, but as a universal IEM, it should accommodate most ear shapes. If you need a sturdy aftermarket cable, the DDHiFi BC120S 2-pin Balanced Replacement IEM Cable features a 1.8mm single-strand wire with a 3µ silver coating and conductor shielding inspired by high-end Nyx series cables, adding durability and a soft touch.

DDHiFi BC120S 2-pin Balanced Replacement IEM Cable

DDHiFi BC120S 2-pin Balanced Replacement IEM Cable

Tradeoffs at a glance

  • Driver architecture: MACH 70 uses a 7-driver all-balanced-armature design for precision and low distortion. Clara uses a hybrid approach (exact drivers not specified) for a potentially more dynamic and colored sound. Choose MACH 70 for analytical detail; choose Clara for a more musical, artist-tuned character.
  • Comfort and ergonomics: Westone Audio's ergonomic design is explicitly built for all-day use with no fatigue. Clara's universal fit is standard but lacks specific comfort claims. MACH 70 is the safer choice for extended wear.
  • Cable and accessories: MACH 70 includes a lightweight UltraBaX cable and is compatible with the EPIC replacement cable. Clara's included cable is not detailed, but aftermarket options like the DDHiFi BC120S offer robust build and silver-plated conductors. Both benefit from aftermarket cables; MACH 70's stock cable is more clearly described.

Product highlights at a glance

  • Westone Audio MACH 70 Universal Fit In-Ear Monitors: Large and wide extension with a smooth top end and commanding bass is what to expect from MACH 70’s impressive soundstage; a listening experience perfect for all people and music genres. Balanced-armature drivers 3-way, seven-driver system with single low, dual mids, and quad highs. Westone Audio technology an ergonomic design allows all day use, with no ear fatigue. The all-BA configuration provides a neutral, detailed, and fatigue-free listening experience suitable for long sessions and varied genres.
  • Campfire Audio Clara In-Ear Monitors: Campfire Audio Clara is developed in collaboration with Rock and Roll hall of fame inductee and member of Nine Inch Nails, Alessandro Cortini. Alessandro is a long-time friend and fan of Campfire and a dedicated audiophile. The collaboration brings an artist's perspective to tuning, offering a sound signature that may be more expressive and less neutral than typical reference IEMs.

Which should you choose?

Best for

  • Listeners who want a neutral, wide soundstage and all-day comfort across all genres
  • Audiophiles who prefer balanced-armature precision and low fatigue

Not for

  • Those seeking a unique, artist-collaboration tuning with a hybrid driver character
  • Users who prioritize a more expressive, less reference-oriented sound