64 Audio TIA Fourte Noir

Meet the Noirte!

PROS: updated Fourte tuning with a deeper more impactful bass and a fuller body more natural mids, new 8-core SPC balanced cable.

CONS: universal only, non-replaceable internal apex, price.

The product was provided to me free of charge for the review purpose in exchange for my honest opinion.

Manufacturer website: 64 Audio.  Available for sale directly, or from Audio46 and other worldwide retailers.


The rumors about a new 64 Audio release started circulating right before the recent CanJam SoCal where it was on the display as a “mystery” IEM in an unmarked shell without any additional info.  I did receive my review sample of Noir a few days before the show, but due to a gag order until the official release date, had to keep it quiet even so it was very tempting to say something while reading CanJam impressions and guesses posted in 64 Audio thread on Head-fi.  It seems that those who heard this “mystery” IEM at CanJam mentioned resemblance to the original Fourte, while others let their imagination run wild with various guesses of exotic driver configurations.

Well, the cat is officially out of the bag, and we can put rumors to rest now.  The new release is a special edition Noir version of their Fourte hybrid IEM.  Reading between the lines, I think 64 Audio had so much confidence in their original flagship that they didn’t want to change too much about it, and instead decided to update the tuning based on the feedback from their customers.  And since the tuning was updated in a warmer direction, I guess that would explain a name of “Noir” given to this new 64 Audio flagship.  So, let’s find out more about the “darker” side of Fourte – its Noir twin!

Unboxing and Accessories.

The packaging box Noir arrived in is similar to other U18t/Fourte/U12t/Trio models, a large box in a removable sleeve with an eye-popping 3D image of Noir on the front and a detailed info on the back covering the design updates.  Under the sleeve you will find a black box with a magnetic latch cover and a secure foam cutout for IEMs and accessories.

The accessories include a custom storage case (more details below), 64 Audio sticker, product manual, premium cable and 2.5mm to 3.5mm pigtail adaptor, and a set of foam (S/M/L) and silicone (S/M/L) eartips.

In a storage case, everything from a wide and easy to handle latch to an air valve eliminating build-up of inner case pressure when you close it, to a separate storage sections for each shell with a removable rubber lining, a custom built-in cable winder, a spot to plug right angled headphone connector and to place the included round dehumidifier container, as well as a built-in organizer to hold securely a shirt clip (included), a cleaning tool (included), and pockets to hold 2 sets of apex modules (depending on IEM model) – all this was custom tailored and well thought of.  There is even enough room if you decide to use a thicker replacement cable.  And you can customize the case with your name etched on the top.


Noir comes with a new 48” premium cable featuring ultra-low resistance silver-plated oxygen free copper wires, using 8 separate inner-twisted conductors vs 4 used in previous 64 Audio models.  Doubling the number of conductors typically reduces the resistance of the cable, but the cable didn’t feel thick, still very light and pliable.  Headphone plug is a straight gold-plated 2.5mm TRRS balanced connector with a metal housing and a nice grip.  Y-splitter is small, rounded, plastic, with 64 Audio logo; chin-slider is small, black, plastic, with a tight sliding control.  Closer to the connector, there is a memory wire surrounded by a heat-shrink tube.  The actual 2pin connectors have an angled plastic housing mold which extends a cable with a more natural shape bent over the ear.  To improve the conductivity of the signal cable, 64 Audio also used a premium Mundorf SUPREME Silver solder.

While the 2.5mm TRRS (BAL) to 3.5mm TRS (SE) adaptor wasn’t included with my review sample, the final product packaging will have it as part of the stock accessories.  I assume that pigtail adaptor will use the same SPC 8-conductor wires and Mundorf silver solder.

Aftermarket cables.

I’m a cable believer because I hear the difference, either a subtle or a more pronounced, and I have mentioned in many of my other reviews that intent of my testing with different cables is not to stir up a controversy, but rather to share my experience of what I hear.  Feel free to skip this section if the talk about cables offends you.  In this test, I compared various premium cables to 64 Audio new stock 8-core SPC cable.  I did volume match because many of these multi-conductor thicker cables have lower impedance which usually results in a louder sound that could be misleading when analyzing and comparing to a stock cable.

Last, but not least, I usually mention that despite the sound changes during cable rolling, nothing is night’n’day.  In theory, cable shouldn’t function like an EQ to drastically change the sound, it’s there for refinement of it.  Here is how I hear the sound changes with Noir while using LPGT as my reference source.

Stock 8core SPC (baseline) – deep sub-bass, strong mid-bass punch, fuller body lower mids, smooth natural upper mids, detailed crisp well controlled treble.

HSA Redcore – tighter faster bass with a better control and slightly more mid-bass impact, more transparent detailed mids with a touch more forward presentation, crisp well controlled treble.

PlusSound Tri-Silver – a little more relaxed sound with a slower bass (attack), mids sound smoother, warmer, and more natural, crisp well controlled treble.

Effect Audio Leo II Octa – a little more relaxed sound with a slower bass (attack), mids sound smoother, warmer, and more natural, crisp well controlled treble which is a little smoother.

DITA OSLO – a little more relaxed sound with a slightly slower bass (attack), mids sound smoother, warmer, fuller, and more natural, crisp well controlled treble which is a little smoother.

PWA 1960-4W – a little more relaxed sound with a slower bass (attack), mids sound smoother, more natural, and more transparent at the same time, well controlled detailed treble with a more natural tonality.


Page 2 – Design and Sound Analysis.

Page 3 – Comparison, Pair up, and Conclusion.

15 thoughts on “64 Audio TIA Fourte Noir

  1. Hi, Twister. Thank you for trusted reviewing.
    I prefer to read your review than other cause of your honesty and because the way you described the sound is exactly the same i heard.
    I love the signature sound of fourte with stock cable, especially low treble. Can you give me some suggestion cable, which can keep the signature sound, but give some more performance and resolution.

    P/s: Can you try the Noir’s stock cable with fourte and give some impression pls ?


    Liked by 1 person

    1. i just tried Fourte with Noir cable, it adds a little more weight to the low end and also a little more body to the mids. Noir cable is 8 conductors, smaller impedance, most likely the reason for this change. For me personally, I enjoy Fourte with HSA Redcore cable from MS https://music-sanctuary.com/collections/han-sound-audio/products/han-sound-audio-redcore-occ-silver-occ-copper-cable – if you convert it from SGD to USD, it’s about $477. It makes sound more balanced, more natural, and improves the resolution and soundstage.

      Liked by 1 person

  2. Hi, Twister.
    Thanks for your review!
    I bought a Fourte Noir recently and love it so much!!
    Could you compare the Han Sound Audio Redcore with moon audio silver dragon v2 cable?


  3. Hi Twister

    Any chance you tried out the Empire Ears Wraith? What did you think? Would LOVE a review/comparison cause they are similar in pricing. Do you have a review in the works?

    Thank you


    1. Hi Twister

      So i read your review and still cant decide if i should buy the u18s or the noir. You dont seem to state what one you like, just the differences in sound. Which one do you prefer? Must be the most annoying question as its quite subjective



      1. That’s what people usually ask from me, to compare IEMs, so I structure my reviews around those requests, instead of personal preference bias 😉 As far as my personal preference, I have been using U18t every day for the last 2+ years, and haven’t found another totl that sounds better to my ears. Only use Fourte in reviews for comparison or pair up with cables/daps.


  4. Found some other threads in headfi of people preferring u18s over fourte as well. Probably going to buy the u18s then. That helps, as you get to try lots of iems and still use it

    What cable do you like to pair with the u18s?



    1. i’m using a lot of different very expensive premium cables, but with many the improvement is very marginal. yes, you can gain 5-10% and if money is not object to you – go ahead with $2k-$2.4k cable (Code 51 has the best pair up I heard to date, but $2.4k for cable). So, i would recommend to start with a stock cable, it’s actually pretty good, and other premium $1k, $2k cables not gonna make U18t sound $1k or $2k better… Just being honest with you.


      1. I have a Leonidas ii and Cleopatra 4 wire already but could allow for a horus. So out of leo+horus, leo 8 wire, cleo+horus or leo+cleo, which would be your preferred cable? Thinking horus+leo or 8wire leo atm to add more bass

        Code 51 is TOO expensive, unless it goes on sale by 15-20% nty


  5. Ok cool, yeah they do for $888 but might buy code 51 instead. Got to wait until london canjam -_____- so farrrr

    Anyways THANK YOU for your help, will buy u18s in the meantime


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s