Astell&Kern STELLA 12-Driver Quadbrid IEM Earphones

STELLA 12-Driver Quadbrid IEM Earphones, by Astell&Kern X VOLK Audio - the result of three disciplines guided by a single pursuit of truth in sound - A CONSTELLATION OF PURPOSE.

Astell&Kern represents the precision of modern engineering. VOLK Audio defines the architecture of design and acoustic form. Michael Graves brings the mastery of a five-time GRAMMY Award-winning engineer who understands the line between control and emotion.

Led by VOLK founder Jack Vang, whose decade of experience helped shape a generation of in-ear design, the project evolved through exchange and refinement. Each discipline strengthened the others, creating an instrument defined by proportion, balance, and restraint.

Throughout development, the VOLK engineering team worked closely with Astell&Kern to advance both process and performance. New acoustic architectures and driver assemblies were created specifically for STELLA to achieve the precision and tonal balance defined in its target response.

These innovations were refined and calibrated through extensive sessions with Michael Graves at Osiris Studio in Los Angeles. Each evaluation focused on tonal accuracy, phase alignment, and spatial coherence, ensuring that every decision served the music itself.

STELLA is built on a 12-driver quadbrid architecture that unites four transducer technologies within a single, coherent system. Each element was developed for its distinct role and tuned through precise control of phase, pressure, and motion.

Its design reflects the same discipline that governs its form. Every contour, cavity, and circuit exists to serve acoustic integrity. The structure is shaped by performance, the performance defined by structure.

Nothing is decorative, nothing is redundant. Every driver operates within its natural range, contributing its character without interference. No forced equalization. No artificial enhancement. Only precision through purpose.

Features

• 12-Driver Quadbrid Design
• Low Frequency Hybrid System (LF-H) - VOLK M9-R Dynamic Driver + Sonion Dual Balanced Armatures
• Tri-Armature Midrange
• High Frequency Hybrid System (HF-H) - Dual Planar Magnetic VOLK MP-2 Drivers + Sonion Quad Electrostatic Tweeters
• 6-Way Crossover Network with multi-stage internal damping and tuned chassis venting
• 5 Precision Sound Tubes

Specifications (IEM)

• Model: STELLA
• Drivers:
• 1 × VOLK M9-R 9 mm Dynamic Driver
• 5 × Sonion Balanced Armature Drivers
• 2 × VOLK MP-2 Planar Magnetic Drivers
• 4 × Sonion Electrostatic Tweeters
• Materials & Finish
• 6061-T6 Aluminum Chassis, Bead-Blasted and Anodized Satin Black
• 6061-T6 Aluminum Central Plate, Anodized Satin Black with a Diamond-Cut Mirror Finish Face
• Sapphire Crystal Glass Panel, 9H
• 316 Stainless-Steel Faceplate Frame, Mirror Polished
• Crossover: Six-Way
• Frequency Response: 10 Hz – 45 kHz
• Sensitivity: 103.8 dB @ 1 kHz
• Impedance: 7.17 Ω @ 1 kHz

Specifications (Cable)

• 23.7 AWG, 4 Core Configuration
• Hybrid Conductor Array: 5N LCOFC Copper, 4N Silver and 24K Gold
• 12-Strand Litz Type 4S Geometry
• 500D Macro-Molecular Fiber Reinforcement Core
• SoftFlex PVC Insulation
• Midnight Black Braided Nylon Outer Jacket
• 6061-T6 Anodized Black Hardware with 316 Stainless Steel Mirror Polished Accents
• 4.4 AEC Balanced Termination

Included

• STELLA Earbud L/R
• Hybrid Conductor Array: 5N LCOFC Copper, 4N Silver and 24K Gold (2pin, 4.4mm)
• 3 Pairs of Silicone Ear Tips (S/M/L)
• 3 Pairs of Foam Ear Tips (S/M/L)
• IEM Pouch
• Cable Holder
• Leather Carrying Case x1

More Information

• STELLA 12-Driver IEM Earphones, by Astell&Kern x VOLK Audio