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109 PRO

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DEFINING DEEP AUDITIONING

A PERSONAL JOURNEY THROUGH SOUND

109 PRO demonstrates our commitment to go beyond the faithful reproduction of sound and deliver pure emotion.

It all started with a purpose – creating joy. It’s about letting yourself get lost in sound, about your intimate connection with your favorite artist, song, or instrument when all distractions are removed.

SUPERIOR BUILD EQUALS SUPERIOR EXPERIENCE

The 109 PRO follows our highest standards for comfort and ergonomics. Once placed on your head, the headphones become unnoticeable, leaving you with nothing but the music.

Walnut wood, cast zinc, manganese steel and vegan leather complete each other to create a comfortable, lightweight, yet highly durable structure.

EXPLORING NEW HORIZONS

STARTING WITH THE BASICS

DIAPHRAGM DESIGN

In a world of fast-paced technology, we bet on proven fundamentals. Our 50 mm dynamic driver, assembled and tuned with ultimate precision, allowed us to push the boundaries of speed, accuracy and dynamic range.

In order to meet the acoustic goals we set for the 109 PRO, we focused our R&D efforts on materials research for each of the driver’s components.

W-SHAPED DOME

Made of a carbon fiber enforced cellulose composite, the dome is able to reproduce high-frequencies with incredible detail, clarity and definition. More durable than conventional alternatives used in dynamic drivers, yet lightweight, this composite helps reduce resonances that may lead to harmonic distortion.

ULTRA-THIN TORUS

The torus surrounding the dome is composed of Beryllium-coated semicrystalline polymer, measuring 22 microns in thickness. By applying the Beryllium coating through Physical Vapor Deposition (PVD), we increased the stiffness and durability of the driver, while still keeping it light enough to achieve a fast transient response. These qualities are also enhanced through the corrugations on the torus, which are precisely carved at a 45.5° angle.

Beryllium’s high damping qualities also help suppress unwanted resonances, giving the 109 PRO its neutral, vivid and transparent character.

ALUMINIUM FRAME

The diaphragm is encased in a high-precision aluminum frame, together with the neodymium magnet. Manufactured using CNC machining, the frame offers superior rigidity, strength, and thermal stability to retain surface flatness.

COPPER-ZINC STABILIZER

The copper-zinc alloy stabilizer, positioned around the membrane, improves the absorption of vibrations to further reduce distortion.

ACOUSTIC DESIGN

Through its open-back design, we wanted the 109 PRO to be vivid and exciting, empowering the listener to connect with music on a deeper level.

Carefully tuned by our engineering team, 109 PRO offers emotionally engaging sound with great detail, clarity and just the right amount of punch. Its organic character, paired with superior dynamics, excellent imaging, and full-bodied vocals bring soul-stirring details to life. Besides, it’s easy to drive from most devices, whether we’re talking portable sources or intricate home setups.

• The spider-shaped structure and the acoustically transparent grill inside the earcup expose the driver from both sides, creating our most open pattern to date.


• Following the principles of anthropometrics, we positioned the driver at a precise angle and distance from the ear, to achieve an ideal anatomical fit.


• Velour cushions comfortably surround the ears, providing the optimal seal to create natural sound. As velour is far softer and more breathable than leather, it also prevents sweat and overheating during lengthy listening sessions.


• The self-adjusting headband spreads the weight out to deliver even pressure for any head shape and size.

SUSTAINABILITY THROUGH LONGEVITY

As our choices of today can have a great impact on the world of tomorrow, we design products that last. We believe that a longer product lifespan means a smaller footprint. Following this philosophy, the 109 PRO can be taken apart and serviced endlessly if ever needed, which can extend the life of the product beyond limit.

SPECIFICATIONS

Transducer Size

• 50 mm

Impedance

• 40 Ω

Frequency Range

• 5 Hz - 30 kHz

Weight

• 375 g (13 oz.)

Sensitivity

• 112 dB SPL/mW at 1 KHz

Ear-Cups

• Black Walnut Wood

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Features

• Dynamic Open-Back Design
  Circumaural headphones for immersive sound experience.




• Advanced Driver Technology
  109 series Dual Membrane Diaphragm combines:

  
  
  • Beryllium-coated polymer
  
  
  • Cellulose + carbon fiber composite
  
  
  • Copper-zinc alloy



• Versatile Compatibility
  Easy to drive from various devices, including portable sources and full home setups.




• Premium Materials

  
  
  • Dark walnut wood earcups
  
  
  • Zinc and manganese steel construction
  
  
  • Vegan leather headband
  
  
  • Soft velour earpads for comfort, lightweight design, and durability.

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Tech Specs

• Transducer Size: 50 mm


• Frequency Response: 5Hz - 30KHz


• Sensitivity: 112 dB SPL at 1 KHz, 1 mW


• Impedance: 40 Ohm


• Earcups: Walnut Wood


• Headphone Connectors: 3.5 mm TS jack


• Weight: ~375 g (13 oz) without cables

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Included Accessories

• Case: Hard EVA pouch




• Included Adapters:

  
  
  • 6.3 mm gold-plated jack

• Standard Cables:

  • Mono 3.5 mm to 3.5 mm (1/8 in), 1.5 m (4.9 in) soft TPE cable with black aluminium casings
  
  
  • Mono 3.5 mm to 3.5 mm (1/8 in), 3 m (9.8 in) soft TPE cable with black aluminium casings