See what other customers are talking about our product and service. All reviews are from actual buyers and we even kept the ones that are saying not so nice things, just to keep it objective and we know where to improve upon, enjoy:p
Based on 1927 reviews

Good communication, good customer service who replied to questions I had, while showing passion. It is nice to see!

As for the cable, I bought the new version, it is very light, thin but sturdy and not flimsy. Craftsmanship is good with Null audio. Looking for new cables for my headphones too!



Very pleased with my Lune MKV custom cable

Received my custom extended length Lune MKV cable. From the awesome packing to the excellent build quality, one of the best cables I've purchased. I will be a repeat customer.

IPX connector is great

Fits into ”UE” and is easy to use



Simple, easy purchase of quality audio cable

5 star review, all went smooth. Helpful customer care both on-line as well as offline. Great quality cable for the asking price! Highly recommended, you can't go wrong :)

Genuine sound guality

These earphones are best choice in 300-500$ price range. Outstanding sound quality, emotional and with its own signature. Definitely worth its price!👏🏻🤞🏻👍🏻

Beautiful cable

It looks beautiful like an accessory.The sound quality becomes brighter.
I used it with multiple earphones that I own, but they all gave good results.

Ethos Plus 5N CGOCC-A Silver Plated Earphone Cable


Just received my Tiburon cables with 8 braid upgrade. Brilliant, best cables I've had the pleasure of owning. Excellent customer service. Build quality and packaging is second to none.

Great Service and Excellent Quality Products

Great communications for the custom order, arrived fast, considering it was an international order. Excellent quality products.

Lune-y Tunes

Excellent quality overall. Love the terminations and the cable wiring. Looking forward to sticking with NA for cable upgrades!

Lune Series MKV Premium Upgrade Cable for IEM

Nice sound signature.

Very good companion for my Campfire Audio Orion.

Just opened the parcel containing my new NA Thera cable.
First comment: WOW. The package il gorgeous, first class! A big (for a cable) blue velvet box with the Symphonym logo. Inside the box an astounding round dark wook box, inside the box the cable. My wife first words seeing the boxes and the Thera itself "a jewel"! After this i've connected the Orions and listened to some well known (by me) music. First impressions are: very clean and dynamic sound with a lot of subtle tones. I believe some burning time is necessary to develope the full potential of the cmbo, so i'll update my comments after at least 50 or more hours of burning time. One thing is sure for me. My first meeting with Thera is very very positive. Thank you NA

Nice cable

Good quality cable for my MD+.

MKIV for Sony EX1000

I had never imagined what a good cable could change the sound of my earphones. This cable has improved the sound in all aspects ... More precision, more detail, more rounded and controlled bass

the sound is good, but a little less loud than i expected. no real problem!

Reliable IEM connectors.

Quite easy to solder with the use of silver solder. And fits nicely just like the stock connectors.

Above expectations

I am generally a skeptical buyer. I wasn't expecting much in terms of sound quality, but definitely had high expectations on how long this cable would last if I took care of it.

However, I was blown away at the quality of sound that it presented. It actually sounded like I was using a completely different IEM the moment I switched the cable out.

Bass seems more pronounced than before and sound separation is the best I've heard from my current IEM.

To be fair, I've only used 3 different cables prior. 2 from Null Audio and 1 custom made one.

You get to decide how reliable my review is, hahaha. I play in live performances for my church and do some personal recordings in my free time.

Gorgeous good sounding cable.

Thr NA Lne mkV is a premuim looking and a very good sounding silver cable. Paired with my IMR R1 IEM the quality is really astounding. Details, soundstage width and instruments separation are very good. I'm a ""long time" semi-pro drummer, hearing cymbals, hi-hats and drums with this set is very very real. Glad i've bought my new Lune. Today i've just ordered a Thera cable for another IEM. Can't wait to listen to it and write another review. P.S.: NA's customer service is really accurate, before and after the purchase.

Durable and good quality conversion plug

Using to convert Lune 2.5mm to 4.4mm and I don't feel losing audio quality at all. It can maintain clarify on the high-mid.

Great service and beautiful cable

The crew from Null Audio were nice to provide alternatives and suggestions to my order. As a first time buyer of a custom cable, I really appreciate it. The cable's build quality is solid and looks amazing!

Excellent cable

I purchased the Tiburon UP-OCC Cryo Copper Headphone/IEM Cable with 8 braid upgrade to go with my CIEM's instead of using my unbalanced 3.5mm cable. Straight out the box there is slightly more detail, wider sound stage and separation with a nice warmish sound which is how I like it. With some burn in time I can see these only getting better. These are very well built.

Good improvement

Just purchased this cable and an improvement to the sound was audible.

Didn’t change the sound signature of my JH 5 pro, but the bass is tighter and clarity improves too.

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