Pressure-balanced Acoustic System

Pressure-balanced Acoustic System

The PBAS is a step from a similar system previously implemented in the DAUNTLESS In-Ear Monitors. It features an intricate network of acoustic pathways that is integrated into the 3D-printed shell structure and the utilisation of a balancer tube for pressure control. ZEPHYR takes full advantage of the PBAS system to significantly enhance the overall sound qualities of the drivers.

Acoustic Balancer Tube

The Balancer tube is a key component within the PBAS, acting to balance the pressure between the front and aft sections of the driver. Its critical dimensions are shaped using a laser cutting process to precisely control the tolerances to under 30 microns (about ⅕ the width of a human hair). This level of precision is required to produce inter-chamber pressure relief with a specific rate of pressure change between the front and aft sections, allowing the dynamic driver’s response to be fine-tuned in order to achieve our desired sound signature.

Titanium-coated Membrane Dynamic Driver

ZEPHYR’s specially engineered Dynamic Driver (DD) takes advantage of Titanium’s excellent mechanical properties, featuring a lightweight Titanium-coated membrane created through a vapour deposition process. The thin layer of Titanium improves the stiffness of the membrane while keeping the membrane inertia low, resulting in a superior transient response and detail retrieval. The sound produced is quick, clean and with a firm bass.

Heart of the Flow

Specifications

Driver Type

1BA + 1DD Hybrid configuration

Titanium-coated Membrane DD

Knowles Balanced Armature Driver

Impedence

18.3 ohms @ 1kHz

Total Harmonic Distortion

≈0.4% @1kHz, 100dB

Frequency Response

20Hz – 20kHz

92.6dBA Average SPL

Structure

3D-Printed Custom Engineering Tough Resin Shell

6063 CNC Aluminium Alloy Faceplate

Weight

5.2 g (Earphone, per side)

21.3 g (Cable)

CARBON 3 Cable

OFC Silver-plated Copper Litz

Gold-plated Right Angle TRS 3.5mm Plug / 0.78mm 2-Pin

28 AWG / 2 x 2-Core

Accesories

1* H-01 Ear Tip Set

1* M-02 Ear Tip Set

1* Ear Tip Organiser

1* CARBON 3 IEM Cable

1* Metal Carrying Case

ZEPHYR IEM

$199.90
$199.90
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