• Sold out on launch day! Limited to 300 units worldwide — Nostalgia Audio × Eddie’s HiFi Audio World’s first Academia collaboration upgrade cable
• 5-conductor hybrid blend: Gold-Plated Copper, Gold-Plated Silver, Pure Silver, Silver-Plated Copper ×2 — not a mere accent mix
• 24AWG Litz Type 4S geometric braid + antique bronze anodized aluminum alloy rotatable hardware
• Amber Gold SoftFlex PVC medical-grade soft jacket + limited edition dark brown XWB eartips (not sold separately)
• 💰 MSRP: HKD $1,999 | Pre-order on May 16 sold out instantly

📑 Table of Contents
- Hong Kong Brand × Veteran Reviewer: The Birth of a Collaboration Cable
- 5-Conductor Hybrid Blend: Not Just Stacking Materials, but Sound Proportions
- Kaia Quick Review: Precious Metal Proportions for Listenability
- Packaging & Accessories: Limited Edition Dark Brown XWB Eartips
- Technical Specifications
- Frequently Asked Questions FAQ
- Market Positioning: The Frenzy for a Limited Run of 300 Units
📝 Hong Kong Brand × Veteran Reviewer: The Birth of a Collaboration Cable
Nostalgia Audio, a Hong Kong brand that has gradually made a name for itself on the international earphone show circuit, is helmed by founders Artanis and Adrian. The brand is best known for its IEMs such as Camelot, Pendragon, and Durandal. Their tuning is youthful and energetic, and they are not afraid to cross boundaries — having previously collaborated with Japanese vocalist Hana_tan and Hong Kong VTuber Miya on co-branded IEMs.
This time, Nostalgia Audio launches its new “Nostalgia Academia” collaboration project, built on the philosophy of “co-creating acoustic philosophy.” The very first collaboration cable partners with veteran earphone reviewer Eddie (founder of Eddie’s HiFi Audio World). Eddie has over 20 years of experience in high-end audio. Their connection began when Eddie published an in-depth review of the Nostalgia Audio Camelot IEM. After 8–9 months of iterative tuning and cross-border listening sessions, the cable finally launched globally for pre-order on May 16, 2026.
The result? 300 units worldwide — sold out the moment pre-orders opened.
🔧 5-Conductor Hybrid Blend: Not Just Stacking Materials, but Sound Proportions

The conductor configuration of the Eddie Prestige is its biggest highlight. Many upgrade cables on the market use a single copper or single silver conductor, but the Eddie Prestige goes all-in with 5 conductor types in a hybrid blend:
- Gold plated 7N OCC Copper
- Gold plated 5N OCC Silver
- 5N OCC Silver
- Silver plated 5N OFC Copper
- Silver plated 7N OCC Copper
The key point here is not merely “stacking as many materials as possible,” but rather that each conductor has a clearly defined role in the sound: copper conductors handle mid-low frequency thickness and density; silver conductors bring transparency and high-frequency extension; silver-plated copper reinforces texture and speed; and the gold-plated conductors — the element Eddie himself values most — inject warmth and sheen into the mid-high frequencies, giving vocals more warmth while avoiding the dryness that pure silver cables can exhibit.
It is worth noting that the gold-plated conductors in the Eddie Prestige are not an accent mix — they are an integral part of the overall configuration. Compared to Eddie’s previous collaboration cable, the Eddie Storm, the proportion and application of gold-plated conductors have been taken a step further, naturally driving up the cost.

On the construction front, the Eddie Prestige uses 24 AWG, 4-strand braid, with a core structure of Special Litz Type 4S geometric configuration. The Litz structure uses multiple independently insulated conductors to distribute signal transmission more evenly while reducing skin effect and internal interference. Nostalgia Audio emphasizes that Type 4S is a proprietary geometric arrangement aimed at further reducing inter-conductor capacitance and inductance, maintaining signal integrity across the full frequency range.
For the hardware, the Eddie Prestige uses antique bronze anodized aluminum alloy, covering both the Y-split and plug housings. Notably, the Y-split and plug housing feature a built-in rotatable structure — utilizing aerospace-grade stainless steel shaft bearings that remain smooth after 200,000 rotation tests, with precision down to 0.01mm. This design is not just visually reminiscent of vintage academia, but a practical consideration for everyday use.
The jacket material is Amber Gold SoftFlex PVC, a custom-formulated medical-grade flexible insulation material. The amber gold tone is warm and understated, the feel is soft, and it significantly reduces microphonics while being resistant to sweat, moisture, and chemical corrosion.
💡 Kaia Quick Review: Precious Metal Proportions for Listenability
From a product design perspective, the most interesting trade-off in the Eddie Prestige is “using precious metal proportions for listenability.” Gold-plated conductors are not uncommon in the upgrade cable market, but they usually appear as accents — a strand or two of gold-plated wire mixed into a copper cable to add a touch of sheen to the mid-highs. The Eddie Prestige, by contrast, integrates gold-plated copper and gold-plated silver directly into the overall conductor configuration, with a higher proportion and greater cost, resulting in more consistent mid-high frequency smoothness.
Another detail worth noting is the rotatable hardware. The Y-split and plug housings on most upgrade cables are fixed structures; over extended use, accumulated torque can loosen the cable interface. Nostalgia Audio’s built-in rotatable shaft bearing may seem like a small detail, but it actually solves a long-standing pain point for IEM upgrade cables.
At an MSRP of HKD $1,999, given the 5-conductor hybrid blend + Litz Type 4S + antique bronze aluminum alloy hardware + custom PVC jacket specifications, the pricing is reasonable. Eddie himself has emphasized that he is not taking any profit from this collaboration, which is one of the reasons the price could be kept at this level. Limited to 300 units worldwide and sold out on pre-order day, indicating strong market acceptance of this specification and price point.
🎁 Packaging & Accessories: Limited Edition Dark Brown XWB Eartips

The packaging of the Eddie Prestige has been redesigned, including a dedicated leather storage panel, an individual numbered card, a thank-you note, and a care card. Nostalgia Audio deliberately designed the packaging as “the first chapter of the unboxing experience,” emphasizing a sense of ceremony from the moment you open the box.
Included with the cable are limited edition dark brown XWB eartips (one pair each of S/M/L) — an exclusive collaboration colorway, matching the Eddie Prestige’s antique bronze hardware. These XWB eartips feature a Swirl Vane Design, made from medical-grade silicone, aimed at reducing turbulence and distortion within the bore. It is worth noting that this dark brown version will not be sold separately — it is exclusive to Eddie Prestige owners.
📋 Technical Specifications
| Model | Nostalgia Audio × Eddie’s HiFi Audio World — Eddie Prestige |
| Gauge | 24 AWG |
| Braid Method | 4-strand braid |
| Core Structure | Special Litz Type 4S geometric configuration |
| Conductor Materials | Gold plated 7N OCC Copper / Gold plated 5N OCC Silver / 5N OCC Silver / Silver plated 5N OFC Copper / Silver plated 7N OCC Copper |
| Jacket | Amber Gold SoftFlex PVC (medical-grade flexible insulation) |
| Hardware | Antique bronze anodized aluminum alloy (rotatable structure, aerospace-grade stainless steel shaft bearing) |
| MSRP | HKD $1,999 |
| Limited Quantity | 300 units worldwide |
| Status | Pre-order sold out |
❓ Frequently Asked Questions FAQ
🔹 What conductor materials does the Eddie Prestige use?
5-conductor hybrid blend: Gold plated 7N OCC Copper, Gold plated 5N OCC Silver, 5N OCC Silver, Silver plated 5N OFC Copper, Silver plated 7N OCC Copper. Each conductor handles different frequency characteristics — not a simple accent mix.
🔹 How much does it cost? Is it still in stock?
HKD $1,999, limited to 300 units worldwide. Pre-orders on May 16 sold out instantly. Any restock is subject to official announcement.
🔹 How does it differ from the Eddie Storm?
The Eddie Prestige takes the gold-plated conductor proportion and application further, adds a Litz Type 4S geometric braid structure and antique bronze rotatable hardware, with overall materials and craftsmanship both upgraded.
🔹 Which earphones are suitable?
Natural, listenable sound signature that won’t radically alter your earphone’s character. Thick/dark earphones get more space and sheen; bright ones won’t become harsh. Ideal for vocals, pop, jazz, and small ensemble enthusiasts.
🔹 What is the rotatable hardware for?
The Y-split and plug housing feature a built-in aerospace-grade stainless steel shaft bearing, allowing 360° rotation (tested to 200,000 cycles). This effectively relieves cable torque, reducing interface loosening risk and extending service life.
📖 Further Reading
🏁 Market Positioning: The Frenzy for a Limited Run of 300 Units
The market positioning of the Eddie Prestige is clear: an upgrade cable built on “precious metal hybrid proportions” as its technical core, “collaborative co-creation” as its brand story, and “limited to 300 units” as its scarcity factor. At HKD $1,999, it sits in the mid-to-high range of the high-end IEM upgrade cable market. However, considering the 5-conductor hybrid blend, Litz Type 4S geometric structure, antique bronze rotatable hardware, and custom PVC jacket, the balance between specifications and price is quite well executed.
The sold-out-on-launch phenomenon, beyond the scarcity factor, also reflects the market’s dual endorsement of the Nostalgia Audio brand and Eddie’s personal reputation. Eddie’s long-standing engagement with the audiophile community gives this collaboration cable a certain “credibility endorsement” — it is not a blind stacking of materials, but a clear sound philosophy guiding the design.
For Hong Kong users, Nostalgia Audio as a local brand, its performance on the international stage is noteworthy. The Nostalgia Academia series is just the beginning; the brand has indicated it will continue collaborating with audio professionals from different fields — future collaboration products are certainly worth looking forward to.
🔗 More Information
🛒 Product page: Nostalgia Audio — Eddie Prestige
📰 Written by Eddie himself: Eddie’s HiFi Audio World — full article on the collaboration cable
📢 Official announcement: Nostalgia Audio Facebook
