AudioQuest Coffee USB-A to USB-B High-Definition Audio Cable
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$705.00
SKU
AudioQuest-Coffee-USBA-USBB-Audio-Cable
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The AudioQuest Coffee USB-A to B Digital Audio Cable is designed for audiophiles seeking a top-tier USB link between their computer or digital source and a DAC or USB audio device. It combines high-conductivity materials, advanced noise-management systems, and precise construction to preserve musical detail, suppress interference, and deliver a refined, low-jitter digital path.
Dielectric and Insulation Design
The insulation is based on Hard-Cell Foam (HCF) or foamed polyethylene techniques, often nitrogen-injected, to maintain a low dielectric absorption environment. Because air (or nitrogen) has very low dielectric interaction, this design minimizes stored-energy distortion and supports precise signal timing. The stiffness of the insulation helps the conductors maintain their geometry and consistent spacing.
Noise Dissipation and Shielding Architecture
To manage radio-frequency interference (RFI) and electromagnetic noise, the Coffee cable incorporates a Carbon-Based 3-Layer Noise-Dissipation System (NDS). This “shield the shield” strategy absorbs and reflects noise in alternating layers of metal and carbon-loaded synthetics before the ground shield layer, reducing the chance of noise modulating the ground reference.
Performance, Use Cases, and Listening Advantages
As a USB 2.0 High-Speed cable, Coffee supports data rates up to 480 Mbps, suitable for high-resolution audio transfers. It supplies the standard USB audio voltage (5 V / 500 mA). In practical use, this cable is ideal when you want the cleanest possible USB DA conversion. Users often report a quieter noise floor, better micro-detail, more natural spatial imaging, and a more “analog-like” musical flow compared to standard USB cables. It's particularly valuable in systems where the USB link is a potential weak link.
Key Features
- Solid Long-Grain Copper (LGC) conductors with 10 % silver plating
- Carbon-Based 3-Layer Noise-Dissipation System (NDS)
- Direction-controlled conductor design
- Hard-Cell Foam or foamed polyethylene insulation with low dielectric absorption
- 72V Dielectric-Bias System (DBS) to linearize insulation behavior
- USB 2.0 High-Speed support (up to 480 Mbps)
- Standard USB audio voltage: 5 V / 500 mA
- Precision silver-plated connectors and optimized terminations
- Stable conductor geometry and reduced distortion/jitter