Positive Cable Premium Delphinus
75 ohm digital coaxial cable with 24k gold-plated digital RCA connectors, designed to link a digital source to a DAC or amplifier.
Description
This 75 ohm digital coaxial cable is used to link a digital audio source, such as a CD player or transport, to a digital-to-analogue converter or an amplifier fitted with a digital coaxial input. It transmits the digital signal in electrical form via an RCA connector dedicated to this purpose.
The cable is built on high-purity oxygen-free copper (HPOFC), a material chosen for the quality of signal transfer it provides. It incorporates an optimised dielectric designed to limit distortion at high frequencies, along with a complex internal structure conceived to preserve the timing accuracy and bandwidth of the transmitted signal. The shielding combines a copper braid and an aluminium foil, with a connector linked to earth, to reduce sensitivity to electromagnetic interference.
The connectors are made of copper plated with 24-carat gold to a thickness of 6 microns, a treatment intended to ensure a stable contact and limit oxidation over time. The solder joints are made with molten tin and hand-finished, for a durable connection between the cable and the connector. The outer sheath, designed for protection against abrasion, completes the assembly.
This cable is aimed at users of hi-fi or home cinema systems wishing to link a digital source to a DAC or amplifier via a dedicated coaxial connection, with a focus on connection reliability and mechanical durability over time.
What to check before buying used
The earth-connector link is worth a visual check: a fatigued solder joint or an oxidation spot on the gold plating degrades the contact and can introduce interference. Also check the flexibility of the sheath and the absence of pinching or sharp bends along its length, which could impair the internal shielding. An RCA connector that no longer clicks firmly into the coaxial socket is a sign of wear that should not be overlooked.
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