That is the overview of the Auribus Acoustics Sierra headphone. It’s promoting for $1,200 USD.
Disclaimer: The Sierra headphone was despatched to me by cma.audio in change for our trustworthy opinion. I thank them for his or her generosity.
Auribus Acoustics
Aurisbus Acoustics is a fairly new title out there, despite the fact that they began again in 2019 already.
On their web site we discover the next: Auribus Acoustics is a high-end headphone startup primarily based in Southern California, the place we mix distinctive industrial design with superior audio expertise. Our purpose is to craft a brand new class of hand-built headphones that meet and exceed the demanding requirements of audiophiles.
What started as a college interest undertaking in San Francisco advanced into an organization pushed by innovation. Early prototypes, refined by means of suggestions from commerce exhibits, led to the incorporation of the corporate and the profitable launch of our first product, Everest, which ran from 2023 to 2024.
Now, with the discharge of Sierra Reference in 2024 and Sierra Aluminum in 2025, we proceed to construct on our basis of high quality and craftsmanship. This newest mannequin integrates superior 3D printing applied sciences all through. This strategy permits for an unparalleled person expertise and manufacturing flexibility, enabling us to fulfill the complicated calls for of the high-end audio market.
On this overview we take an in depth have a look at the Sierra Reference. Let’s get began!
Sierra
As talked about above, the Auribus Acoustics Sierra isn’t new however on the identical time it nonetheless is, no less than right here within the EU.
I first listened to it on the Excessive-Finish Munich present again in 2025, and to be trustworthy I actually disliked it. It simply sounded horrible at that present. I then listened to it once more on the WHO present in Essen later that within the 12 months, and there it sounded good.
Sierra is a brand new tackle the probabilities of open-back, dynamic driver headphones for audiophiles and studios alike.
I can solely think about that somebody tousled the supply tuning on the Munich present, which made the Sierra sound overly heavy, bloated and uncontrolled. Anyway, I’m glad I listened to it once more, and as such we’re now overlaying it on Headfonia, because of cma.audio.
The Sierra is an open-back over-ear headphone and in response to Auribus, it was designed for uncompromising music lovers {and professional} customers alike. On the within we have now 50mm Peerless™ Paper cone Dynamic drivers that in response to the corporate ship an in depth, quick sound with pure timbre and prolonged sub-bass vary. Extra on that later.
True to life accuracy and influence, all day consolation.
Tech sensible, the Sierra has a few fascinating options. The brand new 3D Baffle is a spacious cavity with the motive force pointed at an optimum angle in direction of the ear. Auribus combines it with a precision lower acoustic lens.
One other spotlight are the electrical filters, which optimize sub-bass and treble, offering distinctive management and a pleasantly balanced tonality. After which there are the wonderful Elite Hybrid Leather-based/Velour Pads pads from Dekoni. These pads are deep, smooth, breathable, and so they completely seal.
The Auribus Acoustics Sierra units new requirements in headphone growth. Combining progressive expertise, high-quality workmanship, and distinctive sound, it gives an excellent listening expertise for discerning customers. Whether or not for personal music enjoyment or skilled functions, the Sierra is a superb alternative for anybody who values high quality and innovation.
As you may clearly see within the image, the Sierra is a 3D printed headphone, however extra on that later. Connection sensible it used 3.5mm mono connectors that sit in the back of the ear cups. If I’m not mistaken, Sierra’s driver just isn’t precisely new, and it has been utilized by different makers. It’s all concerning the implementation although, so let’s preserve an open thoughts.
If you wish to discover out extra concerning the particular tech and options, you are able to do so on Auribus Acoustics web site right here.
Field, Equipment, Worth
The Sierra headphone is available in a quite simple, fundamental white field and also you instantly get that selfmade really feel from it, no less than it does that for me.
On the within of the field, there’s a padded carrying case wherein Sierra’s cups properly match when rotated 45°. It’s additionally all that I acquired, however you’ll usually additionally get a 1.4 Meter 3.5mm or 4.4mm to twin 3.5mm termination cable. The Dekoni Elite Hybrid Leather-based/Velour Pads come preinstalled as typical.
Based on cma.audio you additionally get a cable clip for attaching the cable to your shirt collar, however I’ve by no means seen that myself. I’ve been utilizing the Sierra with Meze Audio’s Twin Mono 3.5mm Copper PCUHD Premium Cable, because the inventory one wasn’t equipped.
The Auribus Acoustics Sierra is promoting for $1,200 USD or €1.399 EURO, which places within the medium to high-end vary. Purely trying on the supply, equipment and 3D-print/construct high quality, that’s maybe a bit steep, however let’s see how we really feel about that after we’ve checked out the way it performs and sounds.
Design, Construct High quality
I like Sierra’s design. The grill, earcups and headband simply look cool and it’s not “simply one other headphone”. It actually attracts you in with its seems. Particularly the grills and twin tone headband are what do it for me.
As stated, it’s clear that that is an in-house constructed headphone, nevertheless it’s properly achieved and actually cool in that regard. All Auribus’ headphones are handmade in California and on their website, we discover the next concerning the manufacturing course of:
The complete meeting is crafted from superior polymers and aluminum for a sturdy, repairable, and light-weight meeting. This headphone has been years within the making and represents a generational leap in our capacity to design and assemble a high-quality product in-house.
Because of an progressive mixture of nylon, aluminum, and PETG supplies—manufactured utilizing a high-precision SLS 3D printing course of—the Sierra combines a sturdy, snug light-weight design (product of nylon, aluminum, and PETG) with audiophile finesse.
The 2025 Sierra revision consists of an improved headband with a easy swivel mechanism, together with an optimized driver enclosure for improved mechanical and acoustic consistency. The Sierra headphones are constructed to order, and non-Commonplace colours should be requested by way of e-mail, and are topic to surcharge.
The Sierra does have replaceable elements, cables, pads, and the headscarf could be simply changed or adjusted as wanted. That stated, the Sierra has a sturdy feel and appear, and I’m fairly certain it may possibly take a critical beating earlier than something breaks. I don’t see my unit needing alternative elements anytime quickly.
All-in-all, I just like the design and the construct high quality is sweet however in comparison with a “common” +$1K headphone, it feels fundamental. That nonetheless is a part of the attraction and the philosophy behind it. In the event you nonetheless don’t discover it acceptable for a headphone of this value, I additionally completely perceive.
Sound
Sound – Introduction
That is the part the place we learn the way the model describes the sound signature of the unit in query. For the Sierra, we discover fairly little bit of descriptions and measurements.
The Sierra gives a balanced, relaxed but high-resolution sound signature with sturdy spatial imaging:
- Sub-bass: Surprisingly highly effective for an open design – exact and managed
Take pleasure in a spacious, detailed sound contrasted by the extreme influence of subwoofer-like bass thanks partially to the Patented (Pat. 12,395,780 B2) Linear Extension system.
- Mids: Pure, true to paint, good for vocals and acoustic devices
- Highs: Gently current with out harshness – detailed however by no means tiring
- Spatial imaging: Vast, realistically layered, with clear localization and no exaggeration
The tonality stays managed even at greater volumes – excellent for longer classes with out sonic fatigue. Sierra delivers a sound that’s deeply shifting with out being overwhelming.
The brand new 3D Baffle is a spacious cavity with the motive force pointed at an optimum angle in direction of the ear. Together with a precision lower acoustic lens, the result’s an correct and expansive soundstage, creating a really immersive music expertise.
The 50mm Peerless™ Paper cone Dynamic drivers and an open acoustic construction make for a lovely and pure tone throughout the spectrum. Take pleasure in unimaginable extension at each ends of the listening to vary because of an up to date model of the Patent Pending Linear-Extension System pioneered for the Everest
Let’s discover out if any of that is sensible, and let’s see the way it actually carried out throughout my testing.
Sound – Measurements
Earlier than going into our common subjective impressions, I first wish to present the Sierra’s common FR, in addition to the comparability in opposition to the Harman curve, and the favored HD600.
Right here we clearly see a boosted low finish, as nicely the vocal part nevertheless it isn’t a typical v shapes signature both. The highest finish seems just like the Swiss Alps with loads of peaks and drops, nevertheless it doesn’t actually mirror that when listening.
When in comparison with the favored Harman goal, you may see the Sierra follows the curves properly as much as the 3K space, the place it turns into peakier. Purely this, the Sierra needs to be a straightforward to love headphone tonality sensible.
The Sennheiser HD600 nonetheless is among the most revered headphones in the marketplace. Whereas some reward it for its tonality, others discover it a bit mild within the bass division. As you may see right here, the Sierra properly flows the HD600’s curves, with an added decrease finish. That once more means, this could possibly be a giant crowd pleaser with a tuning numerous you may have been ready for.
The half on sound continues on the second web page. Click on right here or use the jumps under.
