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1 year warranty

Effect Audio

CODE 23 MK II

CODE 23 MK II

CODE 23 MK II is available in both IEM and headphone configurations.

Connector options are available upon request. Please contact info@effectaudio.com for more information.

CODE 23 MK II comes with ConX® & TermX™ Basic Set.

ConX® Basic Set:

- 2-Pin (0.78mm)
- MMCX

TermX™ Basic Set:

- 2.5mm 
- 3.5mm
- 4.4mm

Disclaimer: All prices are listed in USD. For Singapore customers, prices do not include GST, and an additional 9% GST will be applied at checkout.
US$649
US$649
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CODE 23 MK II is the Horizon Series statement of copper in its purest form. Built entirely from UP-OCC Pure Copper Litz, it preserves the conductor’s natural character without compromise—delivering weight, density, and a low-end foundation that is both powerful and solid.

The MK II evolution introduces three precise improvements: over 20% more conductive material for stronger signal delivery and dynamic headroom, a 10% reduction in overall diameter for improved ergonomics, and the Quad-FlexPro™ Solid Core system, which enhances frequency control and stability across the spectrum. Together, these refinements push performance further while retaining structural integrity.

CODE 23 MK II stands as the definitive expression of copper—focused, authoritative, and unmatched in its ability to project music with scale and presence.

Sound Profile

CODE 23 MK II marks a decisive evolution in solid-core geometry—retaining its bold 16.5 AWG gauge while introducing our proprietary Quad-FlexPro™ Solid Core system. While it preserves the core configuration... Read More

What is Improved in MK II?

1. 20% More Conductive Material
CODE 23 MK II uses over 2o% more conductive material than its predecessors. This increase in mass strengthens signal delivery, resulting in greater dynamic power,... Read More

Hardware Design

The Y-split of the CODE 23 MK II embodies a forward-looking vision of engineering. Machined from lightweight aluminum and finished in a soft metallic gold, its compact, modular form draws inspiration from propulsion systems and precision aerospace components.

Its dual-layer construction is defined by clean lines, chamfered edges, and tight geometric balance. This is not a design built on ornamentation—but one that achieves elegance through structure, symmetry, and purpose.

What is in the box

- EFFECT AUDIO CODE 23 MK II Cable
- ConX® & TermX™ Basic Set

Specification

Spec: 16.5AWG  2 Wires                        Smelting Process: UP-OCC

Material & Structure: 
Selected Premium Pure Copper Litz
Quad-FlexPro™ SolidCore
13 Multi-sized Core Bundle
Proprietary Multi-size Stands Blend

Sleeve: EA UltraFlexi™ Insulation         

Length: 120cm ± 5cm

Connection System:
ConX® & TermX™ Basic Set Interchangeable Connector/Plug System

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