Headphoneus Supremus
To Be or KnØt To Be?
Pros: Transparent, Technical, Clarity beast, Ergonomic, Non-microphonic, Gorgeous hardware
Cons: The cons aren't so much cons but if I had to really nitpick, I would like to see better 2-pin/MMCX hardware to match the beautiful Y-Split and Termination plug.
Hapa Audio KnØt Review



Hapa Audio is somewhat of a newcomer in the audio industry as a boutique cable maker.
Led by the genius of James Wong, the company is one of the most, if not the most, unique of cable makers out there. His cable design is truly something that can be compared to jewelry. From wire materials, hardware options, and braiding techniques, Hapa Audio is here to provide a truly unique experience. Today, we’re going to be looking at Hapa Audio’s flagship cable, the “Knot”. Keep reading to find out my experience with the unique company’s vision of what an audiophile cable should be.

Visit Hapa Audio’s website hapaaudio.com to learn more about the company and James’ audio adventure.



The packaging is very simple. In the box, we get the Knot cable and a leather case with a matching lanyard with the cable attached to it. It’s these small touches that really set Hapa Audio apart from the rest. The only downside I experienced was how tight the case was when the Knot is attached with the IEM. Given the thickness of the cable itself, a slightly bigger case would be nice to have. Other than that, the included accessories are all you need.

Design and Build


I went with their Copper and Silver Hybrid wire configuration. As the IEM of choice, I chose the colours based on my beloved Tia Fourte from 64 Audio. I left it to the genius of James to make me a cable that matches the Fourte’s looks.

The finished cable is such a stunning product to look at. Despite only giving him a photo I shot of the Fourte as a reference, James managed to make it match the Fourte extremely well.


The hardware used is another story to look at. I believe the ones that came with mine are made out of titanium, and according to Hapa Audio, no one piece is the same. It’s a beauty, from the Y-split and chin slider to the 4.4 plugs. The only thing I want to be improved is the 2-pin connectors. They just don’t match the rest of the hardware in terms of aesthetics and build. I’m sure this is something Hapa Audio could improve on in the near future. A matching 4.4 plug and a 2-pin or MMCX plug would be amazing to see.


To learn more about the technology and specs of the cable, check out the link below.




Although the Knot is quite hefty, it’s actually quite comfortable to use. I was surprised by the lack of microphonics. With other cables of such thickness, I’d usually have problems with noise when the cable brushes on my clothing when I move around ever so slightly. As a result, it’s great to see or hear that this isn’t an issue with the cable at all.



Now, I know there are several cable non-believers out there, and honestly, I was also one of them in the beginning until I delved quite a bit deeper into this cable rabbit hole. Do cables make a difference? Yes, yes they do. Are the changes night and day? No, of course not. If an IEM or headphones doesn’t sound good, no cable or source would fix that. Cables are there to just give a bit of “fine-tuning” to the IEM’s sound.

So what does the Knot provide to my 64 Audio Tia Fourte? For starters, the Knot is a very resolving cable. I mentioned earlier that the wire configuration I went with is the Copper and Silver Hybrid. I would’ve really liked to try out all of their options to hear the differences since the site distinguishes between the 3 configurations. The Copper is “warm and robust sounding” and the Silver is “neutral and incredibly detailed”. Meanwhile, the Hybrid is a combination of both conductors’ strengths and it is quite noticeable compared to my other pure silver and pure copper cables. It has a warm tonality while still retaining high amounts of detail retrieval.

Bass: The Tia Fourte is quite known for its unique sound, and it produces one of the best bass renderings from an IEM. One caveat for me is that I prefer a bit more “fun” in the bass, just like the Noir version of the Fourte. The Knot provides a bit more warmth in the midbass region, which gives bass notes a touch longer decay, thus providing me with a much more enjoyable listen. This might be the copper doing its job here.

Mids: The warmth from the midbass also extends a bit in the lower midrange, giving male vocals just a bit more fullness. Upper mids do retain their edge, and the Knot provides a bit more presence in the upper mids that give slightly more clarity to female vocals. I wanted just a touch more energy in the upper mids/lower treble on the Fourte and the Knot gives me exactly that.

Highs: On the treble side of things, I do hear a slight bump in this department as well. Some might find it harsh since the Fourte is already bright in the first place. But as someone that has recently become somewhat of a treble head, it’s a welcome enhancement. Now I’m a bit curious about what the pure silver cable sounds like.

Technicalities: From the technicalities standpoint, the Knot does very well in this category. It’s highly proficient in both staging and imaging. While the stage width is excellent and precise, I do find it a bit narrower than some of the other TOTL cables I’ve tried with the Fourte. It’s in the depth and height that the Knot truly shines in my ears.



Overall, even though the Hapa Audio Knot cable has its slight “imperfections”, its uniqueness and the “made for you” experience of ordering gets a recommendation from me. Keep in mind that’s just from the design and aesthetic perspective. The sound improvements or enhancement alone is also something that gets the Knot a seal of approval. I hope you guys will give the Hapa Audio Knot a chance to be a part of your cable collection or rotation.

I wanna thank the Hapa Audio team again for the opportunity to review such a well-crafted and well-balanced cable as the Knot. I look forward to trying more of your other current and future products!

Jason Wong
Jason Wong
Thanks for the wonderful write up!

To clarify, yes all the fitting with the exception of the headphone end connectors are titanium.

I took a lot of time in the development of KnØt FS and even more with KnØt IEM. The main function of the specific braiding geometry is to maintain parallel pathways between signal plus and signal minus of a balanced headphone output.

While others might attempt to do something similar by merely twisting their geometry together, KnØt accomplishes this while retaining proper 90 degree channel separation as well as proper +/- parallel signal distance.

All of this is to say, the sound quality of our geometry far surpasses other designs that merely braid wires together as a means of keeping the wires together.
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