Entreq Core Digital Signal Cable The Entreq Primer Core Digital Signal Cable is the entry point to Entreq's Core cable architecture — hand-built in Sweden, designed around the Energy Reference System (ERS) and Corepoint technology, and supplied with a Corepoint Signal unit as standard. It is available in USB, RJ45 network, RCA and XLR terminations to suit every common digital connection in a high-end system. Why digital cables matter more than you might expect Digital signal is often assumed to be immune to the kind of degradation that affects analogue. In practice, the high-frequency square waves that carry digital audio are just as sensitive to the electromagnetic environment around them. Timing precision, signal integrity, and the noise that travels alongside the bitstream all directly shape what your DAC, streamer or processor receives. Entreq's design work on the Primer Core Digital starts from that observation. Energy Reference System (ERS) and Corepoint technology At the centre of the Primer Core Digital is the Energy Reference System — a separately shielded reference wire that works in concert with the Corepoint Signal unit supplied with every cable. Where a conventional drain wire carries induced noise away, ERS interacts with the electromagnetic field around the cable itself. The Corepoint provides the stable reference point that allows it to do so. The result is digital signal delivered with the coherence and stability the format depends on — cleaner, more precise, and largely free of the high-frequency noise that compromises detail and timing further down the chain. Hand-built construction Every Primer Core Digital Signal Cable is constructed entirely by hand at Entreq's facility in Sweden. It uses copper conductors, a copper ERS wire and hook, cotton dielectric, and connectors customised to Entreq's exact specifications. The Corepoint Signal unit connects to the ERS wire via spade connector. Nothing is outsourced; the same hands that designed the architecture build every cable. Configurations and lengths Primer Core Digital Signal Cable is available in four terminations: USB — for connections between streamers, computers and USB DACs RJ45 Network — for Ethernet connections between network components RCA — for coaxial S/PDIF digital connections XLR — for AES/EBU balanced digital connections Standard lengths are 1.1m and 1.65m. Custom lengths are available on request — speak to us directly for specifics relating to your system. Expandable with Max posts Every Corepoint unit can be taken further with the addition of an Entreq Max post, sold separately. The Max range — Max T, Max S, Max Ti, Max Pa, Max Pl and the range-topping Max Supreme — allows the performance of the cable to be extended incrementally as your system develops. The Primer Core Digital is not a fixed decision; it is the start of an architecture that grows with you. Part of the wider Entreq system Primer Core performs at its best as part of a properly prepared system. Entreq grounding, Protectus, Vibbeaters and the wider Entreq ecosystem all contribute to shaping the electromagnetic environment around your components. Used together, they allow each component to do what it was designed to do — without interference getting in the way. Technical Specifications Terminations available USB, RJ45 Network, RCA, XLR Standard lengths 1.1m, 1.65m Conductors Copper ERS wire Copper Dielectric Cotton Included Corepoint Signal unit Origin Hand-built in Sweden Who is it for? The Primer Core Digital Signal Cable suits anyone running a digital source — streamer, computer, network player or CD transport — who wants to address the electromagnetic environment around their digital connections systematically rather than by chance. It is the entry point to Entreq's Core architecture, which means it works well as a first step and scales with your system as you add further Entreq products. If you are already using Entreq grounding or Protectus, this is the logical next cable to consider. Buying from Martins Hi-Fi Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind. You can hear the Entreq Primer Core Digital Signal Cable at our Norwich showroom, where we demonstrate it as part of a properly configured Entreq system. When you get in touch, you'll be speaking with Dave, Chris and Tim — experienced specialists who can advise on this cable and how it fits into your whole system. Contact us at [email protected], call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.
