Astell&Kern Pathfinder In-Ear Monitors

Astell&Kern has teamed up with Campfire Audio, a U.S. designer and manufacturer of premium hand-built earphones, to introduce the Astell&Kern PATHFINDER in-ear monitors (IEM). Following the successful SOLARIS X collaboration, the all-new jointly developed PATHFINDER takes hybrid IEM design to another level. These sophisticated earphones feature advanced Dual-Chamber Balanced Armature (BA) Driver technology to reach new heights in audio realism.

World’s First Dual-Diaphragm Balanced Armature Driver

A radical new driver design was needed to achieve a wider frequency range, realistic reproduction, and a more balanced sound. At the heart of this innovative new driver assembly is the all-new Dual-Diaphragm Balance Armature Driver from Knowles. By employing a single-coil operating two individual diaphragms, the design is akin to the twin-cylinder engine – delivering more horsepower and smoother operation than one with a single, larger piston.

Dual-chamber driver design

Compared to a traditional BA model with a single, larger diaphragm, this all-new design incorporates two chambers, each housing its own diaphragm and drive rod actuated by a single coil. The result is a higher, more powerful output for its size than any other BA driver design while expressing a warmer and more natural mid-range in key areas of the music.

BA driver with T.A.E.C. technology

Further custom-dual BA drivers focus on delivering clearer and more precise high-frequency reproduction. Benefitting from Campfire Audio’s patented Tuned Acoustic Expansion Chamber technology (T.A.E.C.) technology, this design optimizes the performance by adjusting the volume of space available in front of the driver and provides a direct passage from the driver to your ear.

This clever design extends high frequencies without sibilance or fatigue, delivering unsurpassed clarity and a smooth top end.

Dynamic drivers with Radial Venting Technology

Delivery of the rich and visceral bass sounds, while bringing greater definition to the lower midrange, arrives courtesy of dual-custom dynamic 10mm drivers. Boasting hybrid diaphragms and housed in a Radial Venting Acoustic Chamber 3D printed acoustic chamber, this all-new design by Campfire Audio, creates a faster and more powerful low-frequency response without unnecessary pressure or bass bloat.

Features

• World’s first Dual-Diaphragm Mid-Focused Balanced Armature (BA) Driver from Knowles for a more natural reproduction in the key mid-range area.
• Dual Balanced Armature drivers deliver extended and smoother high-frequency sounds
• Custom-designed dual dynamic drivers with a hybrid diaphragm focus on low-end and mid-range frequencies
• The first earphones to employ Campfire Audio’s new Radial Venting Technology dynamic drivers deliver powerful bass and a larger soundstage.
• Boasts all-new ribbon design; Silver-Plated OFC copper Litz cables minimize signal distortion
• Features robust custom Beryllium Copper MMCX connectors for superior connection

Technical Specifications

• Transducer type:
• [High] Custom Dual Balanced Armature Drivers + T.A.E.C.
• [Mid] All-New ‘Dual Chamber’ Balanced Armature Driver Technology from Knowles
• [Mid-Low to Sub-Bass] All-New Dual Custom 10mm Dynamic Drivers paired with Radial Venting Technology
• Cable: 2.5mm Silver Plated Copper Cable, 3.5mm Silver Plated Copper Cable, 4.4mm Silver Plated Copper Cable
• Material / Design: Aluminium shell. Hand polished stainless steel threaded spout. Stainless steel Inlay and Parts
• Frequency response: 5Hz-20kHz
• SPL: 94dB @ 1kHz 13.49mVrms
• Impedance: 6.2 Ohm @ 1kHz
• Total harmonic distortion: Less than 1%