Entreq Magneus Supreme is the most advanced configuration in the Magneus range — a semi-passive electromagnetic field transformer that forms a chamber around your power cable using eight vertically oriented elements. The result is a calmer field environment, with extraordinary improvements in low-frequency control and spatial depth.

Magneus Supreme offers a more extreme level of electromagnetic field control, being a semi-passive electromagnetic field transformer built from eight vertically-oriented semi-passive electromagnetic field transforming units arranged in a precise circular formation.

This layout creates what Entreq refer to as a passive electromagnetic field chamber: a fully enveloping structure that enhances field shaping and suppresses unwanted interactions such as vagabond currents and high-frequency turbulence. The result is a system that sounds more grounded, more resolved, and more spacious.

All Magneus products influence the field environment surrounding a cable, not just one side or surface. Magneus Supreme takes this further by increasing the number of elements and placing them in a symmetrical, 360° orientation, forming a chamber-like zone of passive field shaping.

As with the rest of the Magneus range, there is no electrical connection. Supreme operates entirely through its internal geometry and material mix — a carefully balanced blend of paramagnetic and dielectric materials designed to guide, calm, and stabilise electromagnetic behaviour.

Most systems suffer from electromagnetic field interference entering through power and network connections — yet this issue is rarely recognised, and cannot be solved by upgrading components alone. Magneus addresses this unseen problem at its source. It’s the only product of its kind in high-end audio.
Read more about how and why Magneus works.

Entreq Magneus Supreme is especially effective at points of high current and field intensity, such as:

• Power cables feeding high-power amplifiers
• Main inlet cables to power distribution blocks
• Sources that are particularly sensitive to grounding effects

When used in the right place, Magneus Supreme delivers exceptional improvements in bass control, tonal structure, and spatial separation. Many listeners describe a quieter background, greater contrast between instruments, and a soundstage that feels more stable and immersive, especially in systems already optimised at the grounding level.

Fundamentally, your system will feel more powerful. Lower frequencies especially become clearer and much more coherent, with Magneus helping reveal detail that previously was lost to noise.

Magneus Supreme is part of the wider Magneus family and shares its core principles with MaxMix T2 and Entreq grounding boxes. Used together, they create a layered approach to electromagnetic field management, shaping rather than suppressing, guiding rather than absorbing, and enhancing system harmony without touching the signal itself.

Magneus Supreme comprises of a single unit. Simply disconnect your desired cable from one component, pass the cable through the hole in the centre of the Magneus and reconnect the cable. Placement of the Magneus can be anywhere along the length of the cable.

Entreq’s Magneus range works extremely well in tandem with their other energy transforming equipment. Entreq recommend using Magneus Power alongside both the Macro Twin Kit (for negative speaker terminal grounding) and the MaxMix T2 Kit (for RFI / EMI removal at the speaker terminals).

Our team are of the opinion that the Entreq Magneus Supreme Electromagnetic Field transformer is worthy of a home demonstration.