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    AudioQuest Diamond USB Type A to Type B Data Cable 1.5m
    SKU: Diamond USB 1.5m

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    Usually dispatched within: 24 Hours
    Warranty: Lifetime Warranty
    FREE UK DELIVERY: For Orders Over £99
    In 1982 Sony gave us "Perfect sound forever," along with the attitude that, "it's just digital, so all CD players sound the same." That was disproved and qualitative differences between players became accepted truth. Next came separate transport and DAC combos, which brought with it the attitude that "all S/PDIF digital audio cables sound the same..." until that too became disproved. Now the frontier has moved once again. Is digital audio really just ones and zeros? We don't believe so, and once you've had a chance to listen to Diamond USB, you won't think so either...


    Perfect-Surface Technology applied to extreme-purity silver provides unprecedented clarity and dynamic contrast. Solid conductors prevent strand interaction, a major source of cable distortion. Extremely high-purity Perfect-Surface Silver minimizes distortion caused by the grain boundaries which exist within any metal conductor, nearly eliminating harshness and greatly increasing clarity compared to OFHC, OCC, 8N and other coppers.


    Any solid material adjacent to a conductor is actually part of an imperfect circuit. Wire insulation and circuit board materials all absorb energy (loss). Some of this energy is stored and then later released as distortion. Solid High-Density Polyethylene Insulation ensures critical signal-pair geometry while minimizing insulation-induced phase distortion.

    DIELECTRIC-BIAS SYSTEM (DBS, US Pat #s 7,126,055 & 7,872,195 B1):

    All insulation slows down the signal on the conductor inside. When insulation is unbiased, it slows down parts of the signal differently, a big problem for very time-sensitive multi-octave audio. AudioQuest’s DBS creates a strong, stable electrostatic field which saturates and polarizes (organizes) the molecules of the insulation. This minimizes both energy storage in the insulation and the multiple nonlinear time-delays that occur. Sound appears from a surprisingly black background with unexpected detail and dynamic contrast. The DBS battery packs will last for years. A test button and LED allow for the occasional battery check.


    Precision direct-silver plated pins are carefully attached with the very best solder. Through choice of flux and metallurgy, AQ solder has been optimized to make a low-distortion connection. The difference you hear between solders is a result of connection quality. AQ Solder does not have a high silver content because the more silver there is in solder, the more difficult it is to make a good connection.


    USB (Universal Serial BUS) was established by a stalwart group of companies such as Intel, Hewlett-Packard, and Microsoft (just to name a few) in order to give the personal computing world a truly universal standard and means to connect devices such as hard drives, printers, cameras, and, more importantly to us, audio components. Included in the original description are protocols for the pristine transfer of audio over USB. Great care and sensitivity went into this. Consequently, a computer connected to a USB-enabled digital-to-analog converter can outperform the best compact disc players available today. AudioQuest is committed to contributing products that honor USB's ability to deliver state-of-the-art performance on this new and wonderful frontier.

    Digital Audio Cable of the Year

    "High-performance digital audio cables are inherently controversial; some objectivists argue that digital audio cables cannot possibly affect sound, while observational listeners often confidently insist well-designed digital audio cables can and sometimes do make for readily apparent and high beneficial sonic differences. We at Hi-Fi+ side with those who think cables make a difference and AudioQuest's terrific flagship Diamond USB cable makes a perfect case in point. Diamond USB features solid perfect-surface silver conductors, foamed polyethylene dielectrics, a three-layer carbon-based noise dissipation system, and AQ's signature 72V DBS (dielectric bias system). The result is an audibly superior USB cable that offers exceptional retrieval of low-level details and three-dimensional soundstage cues in the music, which also conveys a heightened-indeed, almost 'sculptural' - sense of rock-solid imaging. In short, Diamond USB fosters what one staff member termed, "a whole different level of vital connection to hte music"." HiFi+ (131) - January Awards 2016.


    • AudioQuest Diamond USB Type A to Type B Data Cable

    • Length: 1.5 metre

    • Metal: Solid 100% Silver-plated conductors

    • Dielectric: Solid High-Density Polyethylene

    • Termination: Direct-Silver Plated

    • Jacket Colour: Black/White braid

    • Lifetime Warranty

    What is DBS?

    AudioQuest’s founder and chief designer, William Low, explains the Dielectric-Bias System: “DBS puts all of a cable’s dielectric into a comparatively high voltage DC field ... continuously from the time the cable is terminated. The exceptionally simple design uses a wire down the middle of the cable, which is simply an extension of a battery’s cathode. This wire is attached to negative (-) of a DBS battery pack, and nothing else. It is not in the signal path and has no interaction with the signal. Depending on the model of interconnect (analog or digital) or speaker cable, an existing foil “shield” is used as the DBS anode by connecting it to positive (+) of the DBS battery pack. A battery terminal, anode or cathode, has no current waiting to pour out, as does the earth relative to a negatively charged cloud. A battery is a chemical reaction waiting to happen. Both poles of the battery have to be connected to each other in order to initiate this reaction. The point is that since the anode and cathode of a DBS battery pack are never connected, there is no current flow, only a potential across the dielectric (insulation) in-between the DBS field elements.”
    AudioQuest Diamond USB Type A to Type B Data Cable 1.5m
    599.00 New Available online
    Availability: In Stock
    AudioQuest Diamond USB Type A to Type B Data Cable 1.5m
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