Compatibility summary
This GUCraftsman 6N single-crystal copper cable uses dual 2.5mm mono headphone connectors for compatible OPPO PM-1 and PM-2 headphones plus the listed HIFIMAN legacy models that share the required connection. Newer HIFIMAN revisions may use dual 3.5mm sockets and a different listing.
Confirm the exact model and both earcup sockets, then choose the source termination for your amplifier, DAC or player. If the revision is uncertain, use the connector compatibility guide or contact the Custom Shop.
Technical Specifications
- Cable Length1.8 m (71 in)
- Construction8-Core Hand-Braided
- Conductor6N Single Crystal Copper
- Wire Gauge26 AWG
- Jacket MaterialPremium-grade Soft PVC Jacket
- Core ConfigurationEach core consists of 19 individually stranded conductors
- Termination Options4.4mm Balanced (Pentaconn) / 3.5mm Single-Ended (stereo) / 2.5mm Balanced / 4-Pin XLR Balanced / 6.35mm Single-Ended
Precision Assembly & Soldering
All plug and connector terminations are hand-soldered using premium gold-silver solder, ensuring excellent electrical conductivity, stable signal transfer, and long-term reliability.
To further enhance structural integrity, every solder joint is reinforced with UV-cured resin, providing additional protection against oxidation, vibration, and mechanical stress for outstanding durability and consistent performance over years of use.
Why 6N Single Crystal Copper?
Engineered with 6N Single Crystal Copper, this cable utilizes ultra-high-purity copper conductors with an advanced continuous crystal structure. By minimizing crystal boundaries and reducing signal transmission barriers, it helps preserve signal integrity while delivering a natural, rich, and highly musical listening experience.
- Rich Tonality & Natural MusicalityExperience a fuller and more organic sound signature with enhanced tonal density and natural timbre. Vocals gain richer texture and emotional presence, while acoustic instruments benefit from more realistic body, warmth, and harmonic balance.
- Powerful Dynamics & Smooth Transient ResponseThe high-purity copper conductor delivers excellent current transmission capability, improving dynamic contrast and musical impact. Bass response becomes deeper and more controlled, with enhanced weight and definition while maintaining a smooth and natural presentation.
- Refined Detail & Cohesive ImagingThe stable conductor structure preserves subtle musical information while maintaining excellent coherence across the frequency range. Instruments and vocals are presented with a more solid foundation, accurate positioning, and a naturally layered soundstage.
Compatibility
Engineered specifically for headphones featuring Dual 2.5mm Mono Connectors
-
OPPO
PM-1, PM-2 -
HIFIMAN (Legacy Models)
e.g., HE560 V1.2 (2nd Gen Wooden Edition), original HE560, HE400i (2nd Gen / 2016 Revision), HE-400i (2015 Version), HE-4XX (Massdrop Edition), HE-5 / HE-5LE, HE-500, HE-300 / HE-350, Edition X V1, Susvara (1st Generation), and other early HIFIMAN headphones
To ensure your cable is configured correctly, please specify your Headphone model and preferred cable termination when placing your order.
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