The EAhibrid Integrated Cyber Filter was kindly provided free of charge in exchange for an honest review. I didn’t receive monetary or any other kind of compensation and I don’t use affiliate links.
You can check prices and availability at EAhibrid’s website or here.
I originally wrote this review at Greek and published it at the Hxosplus website. I have now translated it in English as faithfully and syntactically correct as I could.
Introduction
Everything began at 2025’s Munich High End Show, where I had the opportunity to meet again with Mr. Paul Huang, the co-founder and driving force behind the Taiwanese brand EAhibrid , a company which is known for the PureDC‑B1, the first linear power supply to use rechargeable 2170‑type lithium batteries, the same type found in Tesla electric cars.
A device that left me the very best impressions when I was among the first media authors to test and review it for Hxosplus printed magazine.
While browsing at the EAhibrid booth, my sight was caught by a LAN cable, very different from the usual ones, since in the middle of it there was a mysterious aluminium box which, as it turned out, housed a specialized passive filter.
On my return back to Greece, my suitcase contained – among other things – EAhibrid’s Integrated Cyber Filter, the aforementioned cable‑filter, which was kindly loaned for listening evaluation.
A long time has passed since then, I have listened to the Cyber Filter in many different loudspeaker and headphone systems. Therefore, the impressions that follow are not the result of a hasty evaluation, but of many extensive and exhaustive tests.
The Integrated Cyber Filter is not an ordinary LAN cable like those manufactured by various well‑known audio companies. On the contrary, it is an innovative and integrated passive solution for isolating and filtering noise from the internet connection before they enter the streamer.
Why do we need LAN filters?
The first question that must be answered is why one would need a LAN filter between the router/switch and the streamer. Isn’t it enough to use a high quality shielded LAN cable to isolate external electromagnetic interference? Things are not as simple as we would like to believe.
Unlike traditional audio sources, the internet is an open environment where streaming services share remote servers with tens of thousands of users, a fact that leads to significant noise interference and increased jitter. At the same time, network devices such as modems/routers/switches generate and introduce their own noise as well. All this noise is transmitted through the cables, arriving to the streamer and from there to the DAC, with all the negative consequences this entails for sound quality.
It is no coincidence that dozens of audio companies are now dealing with the suppression of this noise, researching and manufacturing the appropriate equipment, from specialized routers and switches with linear power supplies to various types of passive and active filters.
EAhibrid Integrated Cyber Filter
EAhibrid tested many such ready made solutions, but none managed to achieve the desired result: digital sound with the “analog” quality of a vinyl system. That is why they began their own research, which ultimately led to the creation of the Integrated Cyber Filter.
The Integrated Cyber Filter is built around the AWR (Advanced Waveform Restoration) technology, which is mainly used in industrial servers and scientific laboratories.
The entire circuit is passive, without any power supply and without additional clocks for digital signal reclocking. EAhibrid considers this minimalist approach to be more direct and effective.
Initially, the four channels of the cable (eight conductors twisted in pairs) pass through four isolation transformers. These transformers are miniature and extremely precise. They feature hand‑wound coils made of pure OCC copper wire with an exceptionally small cross‑section. They are very difficult to manufacture, require great skill from the technician, and have a high failure rate, which increases production cost.
Next, the signal passes through four common‑mode filters, as well as audio‑grade inductors and capacitors for final filtering and sound tuning. All components have been carefully selected after extensive listening tests. Finally, the digital signal is fed back into the LAN cable, having achieved complete noise “isolation” throughout the entire process.
An Integrated solution
The Integrated Cyber Filter could have been a standalone LAN filter with RJ45 sockets, allowing the owner to use LAN cables of their choice. According to the manufacturer, however, the extra connectors significantly degrade circuit performance, and a specific type of cable is required to reach its full potential. For this reason, the company built its own cable, which is soldered directly to the input and output of the filter using pure silver solder.
The filter is available in three lengths (1.25m, 1.75m, 2.5m) and in two cable types (6N OCC pure copper or 6N OCC silver‑plated copper), terminated with gold‑plated RJ45 connectors from the German company Telegärtner. The enclosure that houses the circuit is made of solid aluminum, with a small wooden front panel and a shape reminiscent of a Tesla automobile.
The EAhibrid Integrated Cyber Filter is relatively expensive because it is handmade using the best materials available on the market. There are, of course, LAN cables that are far more expensive than the Cyber Filter without featuring any integrated filter at all.
Listening set-up
It goes without saying that the receiving audio system must be sonically capable and carefully set-up in all its individual components and parameters in order to take advantage of the Cyber Filter’s beneficial effects. You can’t put the icing on the cake if there is no cake at all.
As mentioned at the beginning of this review, the Integrated Cyber Filter was extensively tested both with speakers and headphones. The main system resides in an acoustically treated listening room and comprises the Audiophysic Spark speakers with the Lab12 integre4 Mk2 (Toroid Version) integrated amplifier and the Lab12 dac1 reference DAC as the source. The Integrated Cyber Filter was plugged into the LAN input of the Volumio Rivo Plus streamer. This same streamer was also used to feed various DAC/amps for listening with various headphones, including the Meze Audio Elite.
Listening impressions
The truth is that I am always skeptical and cautious when it comes to testing filters and cables. The improvements they bring are often on the borderline of the “psychoacoustic phenomenon,” and even when they are not, they vary considerably from system to system.
In this particular case, however, the Cyber Filter brought audible improvements in specific qualitative aspects of the sound (in all test systems), which would be difficult to dispute even by the most skeptical listener.
The reverse test dramatically confirmed the truth of the matter. Removing the Cyber Filter and returning to listening with the branded LAN connection cable did not last even ten minutes. No matter how hard I tried to adapt my brain to the “old” state, it was impossible to continue listening to music without the Cyber Filter.
The EAhibrid Integrated Cyber Filter does not perform miracles; it will not change the sonic character of your system, nor will it mask any weaknesses. What it does is improve, in a targeted manner, small but essential details, which, when added together, ultimately achieve the desired result: sound from digital sources that is as analog and natural as possible.
Both the reference system and especially the headphone systems have an enviably low noise floor, well below the threshold of hearing, at least when external conditions allow it. Nevertheless, the Cyber Filter managed to impart a sense of deeper silence, which was mainly perceived in musical passages with very quiet sections. Funeral silence in the literal sense, something that will be particularly appreciated by those who listen to music through headphones or enjoy their speaker systems in a very quiet place.
More listening impressions
I have already tested several branded filters from various companies that use active noise‑cancellation circuits and advanced high‑precision reclocking to improve sound quality.
They usually perform admirably, but often clean up the sound so much that some systems end up sounding excessively analytical and clinically clean. In addition, most of these filters require an external power supply, a parameter that opens Pandora’s box of power‑supply upgrades.
The Cyber Filter on the other hand, manages to separate and highlight details without bringing them to the foreground or magnifying them. It does add extra light, but it does not clean up the sound using artificial methods. The sound flows effortlessly without losing its natural vitality and without becoming sterile.
There is a small but not negligible improvement in the separation and focus of individual musical elements within the soundstage created by each audio system, without them detaching or projecting unnaturally forward from the whole.
The filter’s main beneficial effect, of course, has to do with the near‑complete elimination of the digital footprint and the improvement of the analog texture of the sound.
DACs based on delta‑sigma converters are noticeably upgraded, while R2R types deliver the maximum of their capabilities. It is the first time that I heard such an organic and realistic sound from the Lab12 Dac1 Reference, which is already renowned for these characteristics.
Familiar musical tracks gained new life: the low end acquired body and density, the midrange revealed richer tonal colors, and the high frequencies lost every trace of metallic hardness.
In the end
To end the review here and avoid sounding too lyrical or melodramatic, what the Cyber Filter ultimately achieves is a clear improvement in musical flow and realism. It bridges the gap between digital (streaming) and analog playback media, dramatically reducing their differences. If this is the goal (because it is not always and for everyone), then you should definitely find a way to test the Cyber Filter at your system.
And this is not as difficult as it sounds because if you reside in the EU, EAhibrid’s distributor in Austria will be happy to send the filter and let you try it for 14 days with no additional obligation. Feel free to contact Audioware and arrange a demo of the Cyber Filter at your place.
What is left to add as a closing thought, is simply that the EAhibrid Integrated Cyber Filter has now become an essential part of my reference system and there is no way of parting with it.
Copyright – 2026.
Authored by Petros Laskis for Ichos Reviews. All content is original and copyrighted. Republishing full reviews or substantial portions without written permission is prohibited. Excerpts up to 100 words are allowed with a direct link.
+ Complete LAN noise filtering solution
+ Passive filter with no external power supply
+ No need to purchase additional ethernet cables
+ Dramatic improvement in analog characteristics and texture
+ Eliminates every trace of digital glare and artifacts
+ Enhances silence and sense of music flow
+ Bridges the gap between digital streaming and analog playback
+ Excellent build quality
+ Available in various lengths and two cable types
- The receiving audio system must be of a high level to take advantage of the sonic enhancements
Leave a comment