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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Effect Audio CODE 24 Series MK II / MK 2 Earphone CablesSpecification: Spec: 16. 5AWG 2 Wires Smelting Process: UP OCC Material & Structure: Selected Premium Silver Plated 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 CODE 24 MK II is our definitive love letter to SPC enthusiasts, it delivers speed and transparency with
Specification:-
Spec: 16.5AWG 2 Wires
Smelting Process: UP-OCC
Material & Structure:
Selected Premium Silver-Plated 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
CODE 24 MK II is our definitive love letter to SPC enthusiasts, it delivers speed and transparency with clarity, while copper’s foundation preserves body and weight. The result is a sound that is fast, open, and powerful—free from harshness yet uncompromising in detail.
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 24 MK II surpasses the balance of its predecessors, defining itself with clarity, precision, and expansive scale—an SPC cable at its most accomplished.
Sound Profile:-
CODE 24 MK II delivers lightning-fast transients, crystalline clarity, and holographic air. A sound that radiates with super-tweeter precision, unveiling layers of detail and shimmer with effortless speed and control. Highs extend with brilliance yet remain smooth, while mids stay open and articulate, creating a soundscape that feels expansive, refined, and alive.
It stands as Effect Audio’s most revealing expression of Silver-Plated Copper in the Horizon Series, crafted for those who chase pure resolution and finesse.
It stands as Effect Audio’s most revealing expression of Silver-Plated Copper in the Horizon Series, crafted for those who chase pure resolution and finesse.
What is Improved in MK II:-
1. 20% More Conductive Material
By increasing the strand count by 20%, CODE 24 MK II expands its conductive surface area , improving current uniformity and minimizing micro-resistance across the bundle. This refined geometry enhances transient accuracy and current delivery, translating engineering precision into audible control. Expect stronger yet tighter bass definition, cleaner high-frequency extension, and an effortless sense of dynamic coherence. The natural outcome of copper optimized to its physical limits.
2. 10% Reduction in Diameter
Despite the material increase, the cable is now slimmer thanks to the sleeve optimization. It keeps the same AWG size while improving overall flexibility and reducing bulk.
3. Quad-FlexPro™ Solid Core System
At the heart of CODE 24 MK II lies the third-generation Quad-FlexPro™ Solid Core System—an evolution of 2024’s Trio-Flex™ architecture and our pioneering 2023 Solid Core design. The central conductor now features four individually calibrated solid cores, each precisely tuned for its frequency role:
- One thick core for the lows, enabling superior current delivery and sub-bass authority
- One medium core for the mids, preserving tonal density and coherence.
- Two finer cores for the highs, refining transient speed and micro-detail retrieval.
This deliberately over-engineered solid-core architecture balances current flow and electromagnetic behavior, minimizing interference and mechanical stress across the frequency spectrum. Every structural choice is made to push copper to its physical limits, achieving greater harmonic stability, lower distortion, and exceptional phase alignment. This showcases copper’s natural warmth, revealed with unprecedented precision and control.
Quad-FlexPro™ embodies three years of solid-core evolution, representing Effect Audio’s relentless pursuit of perfection at its most precise, most powerful form
By increasing the strand count by 20%, CODE 24 MK II expands its conductive surface area , improving current uniformity and minimizing micro-resistance across the bundle. This refined geometry enhances transient accuracy and current delivery, translating engineering precision into audible control. Expect stronger yet tighter bass definition, cleaner high-frequency extension, and an effortless sense of dynamic coherence. The natural outcome of copper optimized to its physical limits.
2. 10% Reduction in Diameter
Despite the material increase, the cable is now slimmer thanks to the sleeve optimization. It keeps the same AWG size while improving overall flexibility and reducing bulk.
3. Quad-FlexPro™ Solid Core System
At the heart of CODE 24 MK II lies the third-generation Quad-FlexPro™ Solid Core System—an evolution of 2024’s Trio-Flex™ architecture and our pioneering 2023 Solid Core design. The central conductor now features four individually calibrated solid cores, each precisely tuned for its frequency role:
- One thick core for the lows, enabling superior current delivery and sub-bass authority
- One medium core for the mids, preserving tonal density and coherence.
- Two finer cores for the highs, refining transient speed and micro-detail retrieval.
This deliberately over-engineered solid-core architecture balances current flow and electromagnetic behavior, minimizing interference and mechanical stress across the frequency spectrum. Every structural choice is made to push copper to its physical limits, achieving greater harmonic stability, lower distortion, and exceptional phase alignment. This showcases copper’s natural warmth, revealed with unprecedented precision and control.
Quad-FlexPro™ embodies three years of solid-core evolution, representing Effect Audio’s relentless pursuit of perfection at its most precise, most powerful form
Hardware Design:-
The Y-split of the CODE 24 MK II embodies a forward-looking vision of engineering. Machined from lightweight aluminium and finished in a soft metallic gold, its compact modular form takes cues from aerospace-grade connector housings and propulsion couplings.
Its dual-layer construction, defined by clean lines, chamfered edges, and geometric precision, mirrors the discipline of aerospace design. This is not a design built on ornamentation, but one that achieves elegance through structure, symmetry, and purpose: a visual expression of the same EFFECT AUDIO engineering philosophy that drives the cable within.
Its dual-layer construction, defined by clean lines, chamfered edges, and geometric precision, mirrors the discipline of aerospace design. This is not a design built on ornamentation, but one that achieves elegance through structure, symmetry, and purpose: a visual expression of the same EFFECT AUDIO engineering philosophy that drives the cable within.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 890 reviews
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Product Reviews
★★★★★ 5
Monthly reload for Subscribe & Save Orders
Reload type: One Time Reload
Not a glamorous review, but a genuinely useful tip for Subscribe & Save users. I reload about $100 to my gift card balance once a month, a week or two before my S&S order processes. Amazon pulls each Subscribe & Save item as a separate transaction, which means 10+ individual charges hitting your bank account on before or on ship day. A headache for budgeting and a minor anxiety trigger if you're watching your account for unauthorized activity. Loading the balance first consolidates everything into one clean transaction. Your S&S order then pulls from the gift card balance rather than your card directly, and your bank statement stays tidy.
The side benefit is built-in budget discipline. I set about $100 as my monthly Amazon ceiling - if my cart runs over, something gets pushed to next month. It's a simple system that keeps spending intentional without any extra effort. If you're a regular S&S user who wants cleaner finances and less ""wait, who charged this and what was that charge?"" moments, this is worth making a habit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
★★★★★ 5
Great! 💳✨
Reload type: One Time Reload
I love using my Amazon balance! It’s always so quick and easy to use, it’s convenient and posts quickly without issues, I’ve always had good experiences with reloading my balance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
★★★★★ 5
great product
Reload type: One Time Reload
so easy, thanks amazon
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
★★★★★ 4
Great for keeping bank statements clean but random security delays are frustrating
Reload type: One Time Reload
I use the balance reload tool to manage my monthly budget and easily hit credit card sign-up bonuses. It keeps my bank statements totally clean by grouping dozens of tiny e-book and movie rental charges into one single transaction. Most of the time the whole process works flawlessly and the money shows up in my account within five minutes. It is honestly the easiest way to put a hard limit on my family's everyday online shopping.
You just need to watch out for a few annoying system quirks when you load larger amounts of money. Even though it usually works instantly the automated security filter sometimes flags big reloads and freezes the transaction for hours. This random delay is incredibly frustrating if you are trying to add cash fast to catch a lightning deal before it expires. You also have to remember that this balance is strictly non-refundable and cannot be used to buy other gift cards.
Overall this is still a great method for organizing online spending and maximizing your cash-back credit card rewards. It totally fixed how I track household purchases but you definitely have to tolerate the occasional processing delays. My best advice is to load your account a day or two before you actually need to buy a big-ticket item. It works perfectly as a budgeting tool as long as you know the rules and plan for the random security hold.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Fast
Reload type: One Time Reload
Super fast easy to use and reload
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
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