Ferrum Audio DC JACK powering cord 2.1
Complementary products
Overview
To fully harness the potential of the HYPSOS power supply with third-party devices, Ferrum Audio offers this dedicated DC cable equipped with a 5.5 × 2.1 mm jack connector. This plug format, one of the most widespread in the audio world, allows you to connect a wide range of DACs, streamers, phono preamps, and other components to the Polish hybrid power supply.
A vital link between HYPSOS and your devices
The DC JACK Powering Cord 2.1 stands out from generic power cables thanks to its proprietary four-conductor design. On the HYPSOS side, a 4-pin connector provides the link to the power supply; two wires carry the current, while two others send a feedback signal back to the HYPSOS. This architecture, dubbed 4T Sensing Design (4TSD) by Ferrum, compensates for the effects of cable resistance by maintaining a rigorously stable voltage at the powered device. Transient response is improved, with a power supply that reacts more quickly to current demands.
The contacts benefit from gold plating, a classic choice in high-end audio equipment for its resistance to oxidation and its long-term, reliable conductivity. The 5.5 × 2.1 mm jack connector on the device side features a robust construction, designed to withstand repeated plugging and unplugging without play or premature wear.
Lengths tailored to your setup
Ferrum offers this cable in four lengths: 50 cm, 1 m, 1.5 m, and 2 m. The 50 cm version is ideal for compact setups where the HYPSOS sits close to the powered device. The longer versions are suited to layouts where the power supply needs to stay out of the way, for example in a separate rack or behind a piece of furniture. Choosing the right length deserves some thought: a cable that is too short will limit placement options, while excess length creates clutter and can theoretically introduce a slight additional resistance, even though the 4TSD design minimizes this effect.
Broad compatibility
The 5.5 × 2.1 mm format is used by a wide variety of audio devices. The compatibility list maintained by Ferrum notably includes RME DACs (ADI-2, ADI-2 PRO FS), Sonore streamers (microRendu, ultraRendu), audiophile network switches such as the Uptone Audio EtherREGEN or the English Electric 8Switch, iFi Audio phono preamps (iPhono, iPhono2), as well as devices from Melco, Silent Angel, SOtM, Wadia, and Stax. This diversity highlights the versatility of the cable, which fits seamlessly into systems with very different design philosophies.
Before purchasing, it is essential to verify the exact diameter of your device’s DC socket. The visually similar 5.5 × 2.5 mm connector is not suitable, and Ferrum offers a separate cable for that format.
Positioning within the Ferrum range
This DC Jack cable should not be confused with the Ferrum Power Link (FPL), which is reserved for Ferrum’s own devices: OOR, ERCO, and WANDLA. These have a proprietary 4-pin input that fully exploits the bidirectional feedback technology. The DC JACK Powering Cord 2.1 is intended for users who want their non-Ferrum components with a standard DC input to benefit from the advantages of the HYPSOS.
Ferrum also offers custom cables for devices with unusual connectors. Specific requests can be addressed directly to the manufacturer.
Technical specifications
Connector specifications
- Product type: DC power cable with jack connector
- Connector dimensions: 5.5 mm × 2.1 mm
- Contact plating: Gold
General information
This proprietary 2.1 mm jack DC power cable allows the high-end HYPSOS power supply to be connected to a device equipped with a 5.5 / 2.1 mm DC jack input. It provides perfectly stable and clean power.
Frequently Asked Questions
Does this cable work with any DC power supply?
No. The DC JACK Powering Cord 2.1 is designed exclusively for Ferrum Audio’s HYPSOS power supply. Its proprietary 4-pin connector on the source side is not compatible with other power supplies. Conversely, the 5.5 × 2.1 mm jack connector on the output side will plug into any device equipped with this standard socket.
How can I check that my device really uses a 5.5 × 2.1 mm connector?
Consult your device’s technical documentation or the compatibility list published by Ferrum on its website. If in doubt, measure the outer diameter (5.5 mm) and the diameter of the central pin (2.1 mm) of your current power connector. A caliper allows for precise measurement.
What’s the difference compared with the DC JACK Powering Cord 2.5?
Only the diameter of the central pin differs: 2.1 mm for this model, 2.5 mm for the other. These two formats are not interchangeable. A 2.5 mm connector inserted into a 2.1 mm socket will not make contact; the reverse risks damaging the socket.
Can the cable power two devices at the same time?
No, this cable connects a single device to the HYPSOS. To power two components with a single power supply, Ferrum offers the Power Splitter (FPS), a dedicated accessory that connects to the HYPSOS and accepts two output cables.
Does cable length affect performance?
The 4TSD design compensates for cable resistance thanks to the integrated feedback loop. In practice, the impact of additional length is therefore minimal. Nevertheless, choose the length that best suits your setup to avoid unnecessary clutter.
Do gold-plated contacts require special maintenance?
Gold plating naturally resists oxidation. No specific maintenance is required. Simply avoid rough handling and forced insertions that could scratch the contact surfaces.
- Eco-contribution included in the sale price.
- GTIN / EAN: 5903900676021