Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- Excellent build quality with a smooth shell, tight connectors, and high-quality materials
- Very detailed treble with good spacing between instruments and excellent clarity
- Balanced and natural tonality, suitable for versatile listening
- Great soundstage and imaging, allowing for easy positioning of sound sources
Product Considerations
- Vocals are placed further away, which may feel different compared to other IEMs
- The depth of the soundstage is only fine and could be better
- Cable might have some issues, one side being loose
Comparisons (according to reviewers)
- Vs Craft Ears Four: Aurum produces bass even better with similar speed and texture, goes lower with even more impact, and unveils some more micro details and dynamics in the music
- Vs Lime Ears Aether R: Aurum offers a more open and airy sound signature with superior texture and resolution
- Vs Astrotec Phoenix 6: Aurum is tighter and faster with a cleaner and more separated presentation, which gives it the advantage on detail retrieval
- Vs Effect Audio Axiom: Aurum has much better separation and simply sounds a lot cleaner and more authentic with notes that are more defined
- Vs MMR Homunculus: Aurum sounds a bit more effortless and has greater transparency and better definition and detail retrieval
Takeaway: The Aurum Universal is a well-built and versatile IEM with a balanced sound and excellent imaging, making it suitable for listeners who want a detailed and engaging listening experience. The IEM provides great value for the sound quality and will likely remain a personal benchmark around its price point for a long time.
All
Aurum Universal
reviews

Manufacturer details
- Frequency Response: 5Hz-40kHz
- Impedance: 9.6Ω (± 0.8Ω 10Hz-20kHz)
- Driver Configuration: 1 DD Low, 2 BA Low/Mid, 2 BA Mid/High, 2 EST SuperHigh
- Driver Type/Count: 1 PEN DD + 4BA + 2EST
- Crossover: 5-way
- Isolation: -26 dB
- Proprietary Technologies: True Load™, and SES™ 2.0
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- Craft Ears specializes in custom-fit IEMs, providing buyers with extensive design and material personalization options, even offering the ability to incorporate logos or emblems.
- They implement True Load across their product line, ensuring an extremely flat impedance and phase response, minimizing sound signature variations across different audio sources.
Select products
Argentum Universal
- Positioning: An entry-level option offering excellent value.
- Description: Provides a fun sound with punchy low end and clear mids, featuring a simpler driver design that meets basic listening needs. Compared to the Aurum, Omnium, and flagship Craft Six models, its design is best for users with modest budgets and use cases requiring portability and ease-of-use.
Aurum Universal
- Positioning: A mid-range monitor focused on balanced tonality and refined sound.
- Description: Delivers a well-balanced audio performance with precise sub-bass extension and articulate mids, highlighting a design tuned for musical clarity. Compared to the simpler Argentum and the more advanced Omnium and Craft Six offerings.
Omnium Universal
- Positioning: A higher-end model that emphasizes advanced driver technology for enhanced performance.
- Description: Features a unique, advanced driver setup that produces a full-range, balanced sound with extended clarity. Relative to the entry-level Argentum and the mid-range Aurum.
Six Universal
- Positioning: A flagship product from the Pro Series engineered for premium performance.
- Description: Incorporates a sophisticated six-driver arrangement that offers superior sonic accuracy and an expansive soundstage. When compared to the Argentum, Aurum, and Omnium models.
Our take on the brand
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Used
Craft Ears
What if you spend more?
Our summary
Product Strengths
- Mids are a highlight, being fast, nuanced, and extremely resolving, with excellent separation between foreground and background music
- Treble performance is astounding, extended, airy, and balanced, with crystalline clarity
- Coherent sound where different driver types come together seamlessly
- Very comfortable and lightweight
- Excellent build quality with the use of carbon fiber
- The design and choice of custom designs are ridiculously classy and unique
Product Considerations
- Bass quantity may not satisfy bassheads, as some reviewers feel it lacks extra slam for certain genres like hip-hop and reggaeton
- Treble may be too hot or boosted for treble-sensitive listeners, depending on the source pairing
- The Omnium is a medium-sized IEM, so not too crazy large, but a very large set of earphones may not fit everyone’s ears perfectly
- The gold parts are very prone to scratching
Comparisons (according to reviewers)
- Vs Aroma Audio Jewel: Offers excellent value, being in a similar class at half the price
- Vs Final Audio A8000: Has more clarity
- Vs Fur Audio Radon 6 and Xenon 6: The Omnium probably has a wider stage, but the Radon/Xenon have better depth, and the Radon/Xenon also have more engaging treble and stronger bass
- Vs HIFIMAN Svanar: Both are grand and boast sizable scale, texture, and rumble, however, the Omnium has an X factor that never fails to impress
Takeaway: The Craft Ears Omnium is an amazing IEM with excellent clarity and resolution and is able to play all types of music very well. It's a great choice if one wants something that sounds very balanced and natural with tons of detail.
Video review
Our take on the brand
Our summary
Product Strengths
- The midrange is a standout feature, with reviewers comparing it favorably to the Susvara midrange due to its nuanced, resolving, and micro-dynamic qualities
- Treble performance is noted as extended, airy, and clean, contributing to the IEM's crystalline clarity
- The IEM uses a tribrid driver system, using a dynamic driver, a planar for mids and BAs for highs, rather than ESTs, and its coherence between the drivers is high
- Soundstage width is very good, placing it in the top percentile of IEMs, with excellent foreground and background separation
- Its tuning remains consistent across sources due to its flat impedance curve
Product Considerations
- Comfort can be an issue for some due to the steep insertion angle of the nozzle
- Some users may experience pressure buildup due to the lack of ventilation
- The bass presentation, while having good sub-bass impact on certain cables, may sound like it lacks sub-bass on silver cables
Comparisons (according to reviewers)
- The Omnium Universal is in a similar class to the Aroma Audio Jewel, a significantly more expensive IEM, and provides value
- Shares a similar dip in frequency response, which makes the soundstage bigger
- Vs 64 Audio Volür: Both are bass-focused, but the Omnium is more amenable for treble-sensitive people
- Vs Campfire Audio Solaris Stellar Horizon: The Omnium easily bests it in detail retrieval and playback accuracy
- Vs Letshuoer Cadenza 12 2024 Edition: The Omnium has better resolution and layering than the Cadenza 12
Takeaway: The Craft Ears Omnium Universal is a top-tier IEM praised for its exceptional midrange, coherent sound, and wide soundstage, making it great for a variety of music genres. Its unique sound signature and handmade construction make it a worthwhile investment for serious audiophiles.
Video review
Our take on the brand
Product Strengths
- Excellent technical performance and detail retrieval, considered several cuts above other IEMs
- Outstanding imaging performance, with precise soundstage and instrument separation
- The bass response is a highlight, delivering a punchy sub-bass with texture and articulation
- Offers a warmer tonal balance that is easy to get into with a mostly 'neutral' sound
- Bone conduction enhances low-frequency extension, reverb, and detail
Product Considerations
- Large chassis that may be uncomfortable for some users, particularly those with smaller ears
- The subdued treble range may not provide enough energy and sparkle for some listeners
- Stock cable is lackluster in terms of usability due to its plasticky feel, rigidity, and microphonic feedback
- Driver flex (a harmless crinkling sound upon insertion) is present
Comparisons (according to reviewers)
- Legend Evo delivers a stronger bass impact, depth, and extension than the Legend X
- Legend Evo produces better constructed highs than the Legend X
- Legend Evo shows better clarity than the Legend X, and has more detail
- The Legend X can sound veiled concerning the Legend Evo
- The Legend Evo feels a touch smoother than the Empire Ears ODIN
Takeaway: The Legend Evo is a top-tier IEM with innovative bone conduction technology that creates a unique and immersive listening experience with enhanced bass. It is a great option for those seeking flagship-level performance with a warm, bass-focused sound signature.
Video review
Our take on the brand
Our summary
Product Strengths
- Excellent detail retrieval, resolving with the best over-ear headphones, challenging the brain to take it all in.
- Wide soundstage with precise imaging, creating an immersive, holographic 3D image.
- Easy to drive, delivering speed and impact even with low-power sources.
- High level of craftsmanship and build quality, using premium materials like CNC-machined aluminum and Damascus steel faceplates.
- Comes with the Magnus cable, a high-quality 8-core cable constructed with graphene, monocrystalline silver, and copper-silver alloy.
Product Considerations
- Treble can become a bit hot and fatiguing over long periods, but can be mitigated by using foam ear tips.
- Bass presence is more nominal and cohesive, not dominant or overpowering like some bass-head IEMs.
- Fit may be an issue for some due to the larger-than-average size of the IEM.
- Could be fatiguing over time due to sensory overload from extreme detail.
- Some reviewers found that the upper mids/lower treble frequency range could use a little boost.
Comparisons (according to reviewers)
- Offers a stronger balance of detail, performance, and musicality, a fuller, richer midrange, and better texture and timbre, when compared to the Empire Ears Odin—Odin has stronger holographic separation, an intense sense of vocal performance, and more potential for fatigue.
Takeaway: The Noble Viking Ragnar is a top-tier IEM, offering incredible detail and a wide soundstage for an immersive listening experience. Its build quality and design are exceptional, making it a great choice for those who want some of the best IEMs in the market.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- Excellent build quality and design with options for customization
- Balanced, natural, and smooth sound signature, good for long listening sessions
- Very good clarity and detail retrieval, especially in the treble region, making it revealing
- Good bass control and clarity with satisfying dynamics
- Comes with a practical, sturdy carrying case and a good quality stock cable
Product Considerations
- Soundstage depth might not be as spacious as some competitors
- Lower midrange may be slightly recessed, potentially affecting male vocals
- The IEM shells are on the bigger side, which might affect comfort for some users after extended use
- Stock accessories might be considered basic for a flagship IEM
- The imaging might be confusing, as the vocals are placed further away from the head than in many other IEMs
Comparisons (according to reviewers)
- Vs Craft Ears Four: The Aurum is a natural evolution with improved detail and a more forgiving treble
- Vs Lime Ears Aether R: The Aurum offers a more open and airy sound signature with superior texture and resolution
- Vs Campfire Audio Solaris 2020: The Aurum has greater sub-bass focus, cleaner tonality, and more transparent midrange
- Vs Astrotec Phoenix 6: The Aurum is tighter and faster with a cleaner and more separated presentation, and more energetic treble
- Vs Effect Audio Axiom: The Aurum has much better separation, cleaner sound, and more defined notes
- Vs MMR Homunculus: The Aurum has greater slam and a cleaner mid-bass tuning, greater transparency, and more energetic treble
Takeaway: The Aurum is a well-built IEM that offers a balanced and enjoyable listening experience with excellent clarity and customization options. It is a great choice for those who want a smooth, natural sound with impressive technical capabilities.
Video review
Our take on the brand
Our Summary
Product Strengths
- Build quality is good, featuring clean internals, good quality shells, perfect faceplate closings, and nicely flush 2-pin connectors
- Extremely comfortable to wear due to small earpieces, short canals, and a custom fit
- Has excellent clarity and detail retrieval
- Features a balanced tuning from top to bottom, a coherent and mature tuned monitor
- Competes in kilo-buck turf in both tonality and technicality at a substantial discount
Product Considerations
- Some small pieces of the top end of the nozzle have chipped off after multiple weeks of intensive use
- Plugging the cable in and out can be very tough
- The housings are very large, and protrude noticeably from the ear, which may cause discomfort for some
- Vocal body lies on the thinner side
Takeaway: The Craft Six is a comfortable and well-built IEM with excellent clarity, detail, and a balanced sound signature. It is a good choice for those seeking a high-end listening experience.
Video review
Our take on the brand
Our Summary
Product Strengths
- Impressive technical performance, clarity, detail retrieval, and resolution due to its planar magnetic drivers.
- Features a new, comfortable, and ergonomic shell design that's also lightweight and durable.
- Includes two upgraded Time Stream Metal cables, providing both 3.5mm and 4.4mm terminations.
- Delivers a strong, extended bass response, with texture and speed, plus a nimble, airy top-end.
- Exhibits a spacious, wide, and holographic soundstage with good imaging and instrument separation.
Product Considerations
- Lower sensitivity might require a dedicated DAP or amplifier for optimal performance, and can sound anemic when paired with just a phone.
- Can be sensitive to source pairings, warmer DACs might wash out the mids and some pairings may bring out sibilance.
- Stock tips might not provide the best seal for everyone, and the stock tip selection is poor.
- Silicone eartips can make the treble sound harsh.
- The mirror-finished stainless steel faceplate is prone to fingerprints and smudges.
Comparisons (according to reviewers)
- Vs. Campfire Audio Bonneville: Astrolith has superior mids, clarity, detail and transparency, and better treble extension, articulation, and overall resolution.
- Vs 64 Audio Volür: Astrolith offers bigger bass and a more exciting presentation, as well as faster and more resolving sound, but Volür is more accurate overall.
- Vs. Oriolus Monachaa: Astrolith has a faster and more controlled bass with better texture, a more natural and realistic midrange with a fabulous timbre.
- Vs. Elysian Acoustic Labs Annihilator: Astrolith delivers a more robust and organic mid-range with realistic and natural timbre and more defined lower mids.
Takeaway: The Astrolith is a technically impressive IEM with a comfortable design that delivers a powerful and detailed sound. It could be a great pick for listeners who want high-end sound that can play all kinds of music well.
Video review
Our take on the brand
Our Summary
Product Strengths
- Captures the sound of the original Svanar, with a balanced tuning emphasizing bass and treble while maintaining the mids
- Incredible imaging performance, offering a wide, well-rounded, three-dimensional soundstage with excellent positioning and separation—highly competitive, even compared to non-TWS IEMs under $1000
- Has an R2R DAC which permits unreachable technical performance
- Very light and comfortable
- Excellent connectivity and usability
Product Considerations
- LDAC connectivity issues with invasive intermittence and noise cutting
- ANC and Transparency mode aren’t very useful and lack dynamic, delivering leaner dynamic, less musicality
- Plastic build might not be most durable if dropped
- High-frequencies are quite sensible to the source, making it one of the least forgiving TWS
- Hiss is also present
Comparisons (according to reviewers)
- The Svanar Wireless is punchier, with better bass detail and imaging, and a wider soundstage, while the Final ZE8000 has a warmer, more neutral sound
- The Svanar Wireless has stronger imaging performance, a wider soundstage, and a better balance between separation and cohesion
- The Svanar Wireless is superior in technicalities and tonal balance, as well as timbre and tone naturalness, and ultimately musicality
- The Svanar Wireless' soundstage is taller and wider but not as deep, since clarity isn’t as sharp and clean, silence being more "noisy"
- The Svanar Wireless has better sound and performs better technically
- The Sony TWS has bloated bass that overwhelms everything else; in comparison, the soundstage and treble performance of the Svanar Wireless is miles ahead, presenting a much more detailed, natural, and sophisticated kind of sound
Takeaway: The Svanar Wireless sounds impressive for wireless earbuds, and it has great connectivity and features. For those seeking high-end wireless sound, these are worth considering.
Video review
Our take on the brand
Our Summary
Product Strengths
- Praised for its beautiful design
- Very comfortable, almost expected from an IEM based on resin
- Easy to drive due to its low impedance and high sensitivity
- Provides a lot of clarity
- Has a very natural tonality, even with balanced drivers
Product Considerations
- Its design might be too fragile and prone to scratches
- May lack impact and slam for music with a lot of low-octave focus
- Some amplifiers might not synergize well, needing experimentation
Comparisons (according to reviewers)
- Compared to the Moondrop variations, the Cadenza is preferred for its handling of transitions
Takeaway: The Cadenza is a beautiful IEM with great clarity that's also comfortable to wear. It is an easy to drive IEM, with great potential to provide enjoyable listening sessions.
Video review
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