FiR Audio Radon 6 and Lime Ears Maris use 1DD+4BA+1EST and 6BA,+2BC+2DD,+2EST, driver setups respectively. FiR Audio Radon 6 costs $3,300 while Lime Ears Maris costs $2,700. FiR Audio Radon 6 is $600 more expensive. FiR Audio Radon 6 holds a slight 0.1-point edge in reviewer scores (8.4 vs 8.4). Lime Ears Maris has better treble with a 0.5-point edge, FiR Audio Radon 6 has significantly better dynamics with a 2.3-point edge and Lime Ears Maris has significantly better soundstage with a 3-point edge.
Insights
Metric | FiR Audio Radon 6 | Lime Ears Maris |
---|---|---|
Bass | 8.5 | 8.4 |
Mids | 7 | 7 |
Treble | 7.5 | 8 |
Details | 8.5 | 8.4 |
Soundstage | 6 | 9 |
Imaging | 8 | 8.4 |
Dynamics | 8.3 | 6 |
Tonality | 7.5 | 8.3 |
Technicalities | 7.7 | 9 |
FiR Audio Radon 6 Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.4Very Positive
Lime Ears Maris Aggregated Review Score
Average Reviewer Scores
Average Reviewer Score:
8.4Very Positive
Reviews Comparison
FiR Audio Radon 6 reviewed by Jaytiss
Lime Ears Maris reviewed by Jaytiss
Youtube Video Summary
Lime Ears Maris is a flagship 12-driver quad-brid with branded components, combining multiple BAs for lows/mids, dual Sonion ESTs for air, and a dual Sonion bone conductor for full-range weight. At $2,700 (“Ensemble”), it brings a thin-walled but comfortably large shell, flat 2-pin sockets, and an excellent leather puck case; build and fit feel deliberately premium, with only a minor faceplate edge that can snag. Overall presentation and ergonomics signal a top-tier, tour-worthy piece.
Sonically it’s a fun, impactful tuning: bass hits hard with tactile BC rumble, treble/air are pristine, and resolution is high with an open, spacious stage. The upper-mids are slightly restrained (a touch of ~4 kHz dip) which softens attack—less “incisive” than the graph might suggest—but the set remains clean, coherent, and easy to listen to for treble-sensitive listeners. Think “inoffensive but exceptional”: refined energy up top, big physical slam down low, and clarity that holds together complex mixes.
Context against peers: Terra is exciting but the 5–6 kHz energy can fatigue; Incognita tracks a preferred curve better as a one-and-done at a lower price. Annihilator offers more bite in upper-mids/treble, yet Maris will suit those sensitive to that region; versus Grand Maestro, Maris wins on comfort and bass quality. Compared with Europa, Cadenza 12, Omnium, and Visioner’s 10, trade-offs shift—some deliver sharper treble “spark” or smaller shells—but the Maris’s bone-conducted bass, comfort, and safe-refined balance make it a strong recommend to demo at a show before choosing.
Jaytiss Youtube Channel
FiR Audio Radon 6 (more reviews)
FiR Audio Radon 6 reviewed by Smirk Audio
FiR Audio Radon 6 reviewed by Head-Fi.org
Lime Ears Maris (more reviews)
Lime Ears Maris reviewed by Kois Archive
Kois Archive Youtube Channel
FiR Audio Radon 6 Details
Driver Configuration: 1DD+4BA+1EST
Tuning Type: Neutral with Bass Boost
Price (Msrp): $3,300
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Lime Ears Maris Details
Driver Configuration: 6BA,+2BC+2DD,+2EST,
Tuning Type: n/a
Brand: Lime Ears Top Lime Ears IEMs
Price (Msrp): $2,700
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FiR Audio Radon 6 User Review Score
Average User Scores
Average User Score: n/a
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Lime Ears Maris User Review Score
Average User Scores
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FiR Audio Radon 6 Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.1Gaming Grade
BLime Ears Maris Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.3Gaming Grade
A-FiR Audio Radon 6 Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- The response is even and composed, lending itself to effortless genre hopping. Voices sit comfortably in the mix.
Average Technical Grade
A- You get a well-rounded technical package that keeps separation, detail, and staging in harmony. It's a solid middle ground between fun and fidelity.
Lime Ears Maris Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- It delivers a coherent, natural timbre that remains captivating across genres. Acoustic instruments sound lifelike and textured.
Average Technical Grade
S- Expect an effortlessly clean presentation that keeps complex mixes perfectly organized. There is zero sense of congestion even at high volume.
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