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All it takes is a revolution

You can make a first impression only once. With this idea in mind, parent company HEM set out to conquer the world with Ferrum. A new brand, which they modelled on their twenty years’ worth of experience in designing and manufacturing audio electronics. They decided to start at the beginning of any hifi system; the power supply. And make it better.


Enter Ferrum’s firstborn 

 HYPSOS is a hybrid power system and combines the best features of both linear and switching power supplies. HYPSOS can power many brands with a simple revolution of a knob. This software based operation is unique to HYPSOS and an industry first! Apart from the ease of operation HYPSOS makes use of a smart combination of existing power sensing techniques, which again sets it apart from the pack.  HYPSOS will reveal unrivalled detail and makes your existing setup perform to the max. You’ll just love it!

Any quality device with a DC power connector will benefit from HYPSOS 

This could be a preamplifier, separate phono preamp, D/A converter, turntable or even a network switch. HYPSOS will power selected components and make them perform to the maximum of their capabilities. 

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HYPSOS is the easiest upgrade for even the most discerning music lovers 


HYPSOS defines a brand new category of a hifi products.

It’s not just another simple power supply, but an audio component of its own – an equally (or even more) important part of a setup as any other. HYPSOS offers a selection of unique features and even accounts for future software improvements – the device is software controlled with as few hardware dependent elements as possible.


The most important features are:


Hybrid Power System
Linear/switching hybrid design to get the advantages from both techniques - low ripple and noise as well as fast transient response and high efficiency.


Distinct user levels
Using pre-configured settings from the list of supported devices or setting custom parameters manually. Wide continuous ouput voltage range of 5-30V with up to 6A of current delivered to the load. HYPSOS is as universal a device as it gets.



Sweet Spot Tuning (SST)
Possibility to fine tune the output voltage for the best sound. The voltage level can be safely adjusted on the fly to allow easy comparison testing.


4T Sensing Design (4TSD)
Ensuring the exact voltage level precisely at the point of the powered device DC input terminal - special cable design and feedback to ensure flat voltage at every moment. This technique eliminates the harmful effects of the cable's resistance effectively improving transient response.


Advanced Automation
Compatibility with Apple TV remote, Trigger in/out connector; possibility to automate power-up of the devices with standby mode even without dedicated trigger connection.


Extremely safe to use
Automatic Transformer Voltage Adjust (ATVA), Electronic Output Voltage Polarity Switch and overvoltage, current limit and short protection. Settings lock to prevent accidental change of the parameters.


Detailed and revealing yet unfatiguing sound
Makes your current audio setup perform to its potential. Tweak the sound modifying the voltage level on the fly and use the preferred combination of the 4-Terminal Sensing and Spread Spectrum Mode settings.



Works with!
Check out which products are compatible with Hypsos. Compatibility list



Extensive and easy to update list of compatible devices is flashed right into the device to make the Hypsos set-up experience straight-forward and safe.


Electronically controlled output voltage and DC plug polarisation allows you to power a lot of equipment without the need of purchasing different product or cable versions. Before the output power is applied you are always asked for the confirmation of the parameters set - whether for the device chosen from the list or entered manually.

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Sweet Spot Tuning or as we call it SST is a super unique possibility to experiment with a different voltage level supplied to your device.

You can adjust the level (in the safe range described by the device's manufacturer) of output voltage on the fly and be sure not to damage your unit.

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DC Power Cables : 


HYPSOS comes with one high quality 0.5m DC power cable.

You can specify the cable to be fitted either with a 5,5 x 2,5mm connector, or a 5,5 x 2,1mm DC plug allowing you to connect to the most commonly used DC inlets. If you need a different type of DC plug adapters please contact us.

Unique output cable design: 


Two wires delivering the power and two wires providing the feedback to ensure flat voltage at every moment. This technique eliminates the harmful effects of the cable's resistance effectively improving transient response. The current delivery speed at the powered device's input is significantly improved.

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Power Input

100-240Vac/50-60Hz (EU/US Version),
IEC C14 power inlet, a fuse holder with power on/off switch plus two-stage EMI filter for low impedance load with better noise attenuation in low frequency applications

Mains Cable


DC OUT Cables (0.5m)

5×2.5mm DC plug or 5×2.1mm DC plug

Output Voltage Range

5-30 Volts

Max Continuous Output Current

 [ for V_out below 13,3V ]

6 [A]

Maximum Impulse Current


Maximum Impulse Power

DC V_out * 9A (270W for 30V)


W x H x D / mm  -  217.5 x 206.5 x 50.0

W x H x D / in  -  8.6 x 8.1 x 2.0

Net Weight

2,9 kg / 6.2 lb




Extended Length Cables

1.0m / 2.2mm or 2.5mm   $128

1.5m / 2.2mm or 2.5mm   $157

2.0m / 2.2mm or 2.5mm   $186 

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What they say ...


"... The Ferrum HYPSOS, is a game changer, not only as an improvement over the standard power supplies, but as a versatile addition to many DACs. The HYPSOS, really is THE upgrade path to take if you want to hear what your digital front end can produce.


David Robson  -  Hifi Pig   March, 2021


"The Hypsos really did it. More dynamics, better bass performance..."
Morten Mohr & Marius Smolinski  Germany

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Hans Beekhuyzen Review

Ferrum Hypsos Front and Rear View Stack.

... more of what they say ...


I don't know of other power supplies which were equally versatile, equally functional and easy to use ... and also - for me this is an important aspect - nice and solidly made.

Behind Hypsos there is real engineering, as well as proprietary solutions that you will not find anywhere else.


As for the sound - now I can't imagine playing music with my Mytek without the Hypsos . All owners of linear power supplies , and those who do not yet such devices, should already start saving money. The Ferrum power supply takes the sound to a much higher level and once it is heard ... it is remembered.

 There are other LPSUs on the market, but the Ferrum Hypsos is such an amazing product that it cannot be ignored in your search. And this, regardless of the price of the component to be powered.

Wojciech Pacula  -  High Fidelity   December, 2020


" ... Here I’d hit upon measurable differences that may, arguably, correlate with the added tonal richness and authority heard at modest playback levels. So The Dark Knight – the opening suite from Hans Zimmer’s Symphonic Celebration – now thundered all the more convincingly with the Hypsos ‘conducting’, illuminating the ambience of the Vienna Konzerthaus to rousing effect.


Compact hi-fi separates poweredvia plug-top ‘wall-warts’ typically– though not exclusively – fall into our ‘Budget Esoterica’ category, so the attraction of a circa-$1000 supply upgrade might seem largely... academic. If, by contrast, you are absolutely wedded to your choice of small form-factor headphone amp, DAC, phono pre, etc, then the subjective impact of Ferrum’s Hypsos absolutely should not be discounted ! "

Paul Miller  -  Hifi News   March, 2021


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