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 sub-bass extension
- Very good midrange clarity
- Comfortable fit due to the wide nozzle, and lightweight shell design
- Well-built, and user-friendly cable made by PW Audio ('Ensembl')
- Comes with a very high quality, and useful Van Nuys case
Product Considerations
- Slightly bright mid-treble
- Conservative shell aesthetics
- Overall tone may not work for everyone
- Not a small IEM, it can be a bit bulky
Comparisons (according to reviewers)
- The reviewer prefers the Kiwi Ears 4 smoothness
- The reviewer prefers the Custom Art for Bray's nice flat mids
- The reviewer prefers the Oriolus Isabellae's mix of amber and wood plates
Takeaway: The Oriolus Monachaa is a quad-dynamic driver IEM with excellent bass and midrange clarity, which provides a comfortable fit. It also comes with a high-quality cable, and a very useful carrying case.
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Manufacturer details
- Model Name: Monachaa
- Body Material: Photopolymer (hand craft)
- Transducer Type: Dynamic Driver*4
- Sensitivity: 111dB/mW
- Frequency Response: 20Hz~40kHz
- Impedance: 240ohm
- Cord: Made by PW Audio (Order made, Copper)
- Plug Type: 4.4mm Balanced
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:
Select products
Traillii Japan Version
- Positioning: The entry-level unit designed for affordability and compactness.
- Description: Features a straightforward design with reliable circuit performance that works well for small rooms and modest sonic goals. Compared to other offerings like Mellianus JP or Isabellae, it offers basic functionality without advanced processing and is best for buyers with tighter budgets and simpler use cases.
Mellianus JP
- Positioning: A mid-range model balancing performance with cost effectiveness.
- Description: Incorporates improved build quality and refined circuit design that delivers clearer sound details for medium-sized spaces. Compared to the entry-level Traillii while not reaching the high-end sophistication of the Monachaa-1, it provides a noticeable step up in technology and sonic refinement.
Monachaa-1
- Positioning: A performance-focused unit aimed at enthusiasts looking for richer sound reproduction.
- Description: Introduces novel signal processing enhancements and a more nuanced circuit layout which offer a marked improvement in dynamic range and clarity. While it outperforms both Traillii and Mellianus in technical complexity, it remains a notch below the advanced features found in the Isabellae and Szalayi series.
Isabellae
- Positioning: A high-end product engineered for advanced audiophiles demanding greater technical performance.
- Description: Brings a refined power management system combined with enhanced signal integrity that suits larger rooms and higher sonic expectations. In comparison with the Monachaa-1 and Mellianus, it offers elevated build quality and more complex internal design while still positioned below the flagship Szalayi in terms of complete functionality.
Szalayi
- Positioning: The flagship offering that features the best available technology in the lineup.
- Description: Uses state-of-the-art components and advanced circuit design to achieve superior sound fidelity, wide soundstage control, and additional functionalities suitable for the most demanding setups. Compared to all others in the range, including Isabellae's high-end performance, Szalayi stands out with the most advanced features for buyers who prioritize maximum technical sophistication and versatility.
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Used
Oriolus
What if you spend more?
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
Our summary
Product Strengths
- Tremendous transparency, offering a wealth of microdynamics and spatial cues, critical in determining positioning and layering.
- Incredibly clear sound, yet wrapped in a warm, lush, and inviting overall picture.
- Highs are extended, detailed, and wonderfully resolved, easily able to summon the ethereal or holographic when called for.
- The soundstage is quite impressive—deep, wide, with very good headroom, and holographic when called to be so.
- The shell design is comfortable with a short nozzle, and light weight.
Product Considerations
- The treble is a little bit relaxed, and some songs may not cut through the way they need to.
- Amplifiers for this particular headphone are going to matter, and they are going to make a difference between several different amplifiers.
- The bass does not bring the rumble, nor the impact, nor does it reach to the stygian depths of the Holy-Bass-Head-Grail.
- Though the Odin provides for a comfortable fit, it can be uncomfortable for people who have really small ear holes, as the stem itself is quite wide.
- The 'Bifröst' faceplate design might be too flashy for some.
Comparisons (according to reviewers)
- Vs Empire Ears Zeus: The Odin smashes the Zeus all day, every day, for sound quality, with a better midrange and significantly nixed highs.
- Vs 64 Audio U12T: Odin is at least as good, if not better, in the mids and the bass, and has better punch and slam to the bass frequencies.
- Vs Empire Ears Legend X: The Odin is a much more balanced-tuned IEM.
- Vs 64 Audio Tia Forte: The Odin has a more agreeable frequency response.
- Vs Thieaudio Monarch: The Monarch has a really nice bass shelf, but the Odin has better technical performance and a better frequency response.
Takeaway: The Empire Ears Odin offers an easygoing listening experience and clear sound, and has tight bass response with a great midrange. It could be a great choice for those seeking a warm IEM with finesse.
Video review
Our take on the brand
Our summary
Product Strengths
- Incredibly clear and detailed sound, offering a transparent window into the music
- Well-defined, punchy, and high-quality bass response, with good impact and rumble, without being muddy
- Smooth and well-defined treble, avoiding sibilance or harshness, and retaining excellent resolution
- Broad and deep soundstage with excellent imaging, layering, and separation of instruments
- Visually striking and beautiful Bifrost faceplate design
Product Considerations
- The fit may be uncomfortable for users with smaller ears, as the stem is quite wide and the monitors themselves are fairly large
- Upper mid-range can be forward, and at times can be borderline shouty or fatiguing in some tracks
- Treble response, while detailed, might be a little relaxed for some, not cutting through as much as some other IEMs
- Some reviewers found the build quality of the resin shell to be just okay, not feeling particularly premium or durable relative to the price
Comparisons (according to reviewers)
- Vs. 64 Audio U12T: The Odin has better punch and slam in the bass, while the U12T has a more layered and separated sound with slightly more micro-details
- Vs. Empire Ears Legend X: The Odin is much more balanced and refined compared to the bass-heavy Legend X
- Vs. Fir M5: The M5 has a more forward and clearer treble response and wider soundstage, but the Odin's midrange is more forward and produces a more enjoyable vocal response
- Vs. Empire Ears Zeus: The Odin is smoother with more bass response and a better mid range
- Vs. Vision Ears Elysium: The Elysium brings an analog-like ease to the midrange, but is not a match for the Odin in detail and transient speed
Takeaway: The Empire Ears Odin is a technically impressive IEM with a smooth, clear sound, detailed bass and a striking design. If one is seeking a high-end listening experience where details are clearly displayed in an immersive 3D stage, these could be a great match.
Video review
Our take on the brand
What competes at this price?
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
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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
Our take on the brand
Our Summary
Product Strengths
- Versatile sound signature, going from bassy to neutral with the use of included tuning modules
- Excellent bass response with a dynamic driver, providing strong texture, deep extension, and impact
- Very good treble extension, air, and sparkle for detail retrieval without harshness
- Expertly captures the 64 Audio character of balancing pro audio sensibilities and a more audiophile-friendly sound
- Comfortable and durable design, with a lightweight anodized aluminum shell and well-thought-out accessories
Product Considerations
- Imaging and instrument separation are decent, but not standout for the price range
- Mid-range may sound a bit thin to some, with a more relaxed upper mid-range that results in vocals being a little bit on the husky side
- The nozzle doesn’t have lip holder and is a bit problematic
- Isolation isn't exceptional due to the apex module
Comparisons (according to reviewers)
- Vs 64 Audio Neo: U4S is preferred due to the U4S being the cheaper IEM
- Vs Thieaudio Monarch MkII: The Monarch is comparatively lean sounding
- Vs 64 Audio U6T: U6T is a little more neutral overall with a stronger technicality, but the U4S injects a little more fun into the sound
- Vs Campfire Audio Andromeda Emerald Sea: The U4S offers a more natural mid-range presentation
- Vs 64 Audio Nio: The U4s effectively undercuts the Nio by a third of the price with comparable sound quality
- Vs Custom Art Fibae 5: If you want technicalities and details, Fibae 5 is superior, if you want a very capable yet slightly musical and mainstream IEM, opt for the U4s
Takeaway:
The 64 Audio U4s is a well-rounded IEM that offers a fun and engaging sound signature with the ability to customize the bass response. With its comfortable fit and excellent build quality, it's a great option for those looking for a versatile and enjoyable listening experience.
Video review
Our take on the brand
Our Summary
Product Strengths
- Great build quality and design with eye-catching faceplates
- Listeners can enjoy the versatile sound signature, suitable for all-rounder listening preferences
- Good balance of technical performance and warm musical tonality
Product Considerations
- Bass could use a bit more texture to color the rumble
- Unvented shell design and larger-than-average nozzle size (6.2 mm)
- Stock cable is stiff and without a chin cinch
Comparisons (according to reviewers)
- Versus 64 Audio U4s, the Terra falls between the U4s warmer, lusher end of the spectrum and the Symphonium Helios' lean and bright signature
- The Terra is a better blend of technical performance as well as warmth in the musical aspect when compared to Awful Cantor
Takeaway: The Lime Ears Terra is a versatile IEM that provides a good balance of technical performance and warm, musical tonality with solid bass, mids, and excellent treble. The build quality is excellent, and they have a unique look in the marketplace.
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