Lime Ears Terra VS 64 Audio U4S

IEM Comparison: Expert & Community Scores Side-by-Side

Lime Ears Terra and 64 Audio U4S use 1DD+5BA and 1DD+3BA driver setups respectively. Lime Ears Terra costs $1,200 while 64 Audio U4S costs $1,100. Lime Ears Terra is $100 more expensive. Lime Ears Terra holds a clear 0.7-point edge in reviewer scores (8.5 vs 7.8). 64 Audio U4S has significantly better mids with a 1-point edge, Lime Ears Terra has significantly better treble with a 2-point edge and Lime Ears Terra has significantly better soundstage with a 2-point edge.

Insights

Jaytiss Score
Lime Ears Terra
8.5 /10
Jaytiss Score
64 Audio U4S
7.8 /10
Score gap: 0.8
Metric Lime Ears Terra 64 Audio U4S
Mids 7 8
Treble 8 6
Soundstage 8 6
Dynamics 7 7
Tonality 7.5 6.8
Technicalities 8 6
Take these comparisons with a grain of salt—we don't have enough Lime Ears Terra and 64 Audio U4S reviews saved yet to provide an unbiased result.

Jaytiss Reviews Comparison

Lime Ears Terra reviewed by

Jaytiss 8.5 Reviewer Score
A Tuning
A+ Tech
Best value of the Lime Ears.
Youtube Video Summary

Build and presentation hit boutique vibes: a machined-aluminum shell with a clever nozzle dip that grips tips securely, a flat 2-pin socket with a top filter, and smooth finishing that feels premium in ear. The accessory set fits the price—SpinFit W1 and foam tips, cleaner, pouch—and the leatherette puck case looks simple but feels surprisingly durable. The stock 4.4 mm cable is aesthetically pleasing yet a bit stiff, with a loose chin slider; red/blue markers make orientation easy.

Tonally, Terra skews brighter with a touch of sharpness up top, bringing strong micro-detail and air while keeping a tasteful, impactful bass shelf. The 6-driver hybrid (including a 7 mm titanium DD for lows) delivers confident technicalities: fast attacks, clean separation, and a wide-open stage. FR observations show a gradual bass rise, good treble extension, and a mid-treble lift (around the 8 k region) that adds sparkle and excitement but can read hot for sensitive listeners.

Against peers, Terra tracks a refined “Harman-ish” contour with extra energy, feeling more dynamic and lively than several mid/high-tier alternatives while keeping mids even and uncluttered. Trade-offs exist: a hint of metallic timbre, occasional upper-mid glare, and imaging that can soften at micro level; yet the overall mix of bass quality, clarity, and stage makes music engaging. At $1,200, the Polish boutique package reads as a serious, distinctive choice—highly recommendable if a brighter tilt and vivid treble are on the wish list.

Mids: A- Treble: A+ Dynamics: A- Soundstage: A+

Jaytiss original ranking

Jaytiss Youtube Channel

64 Audio U4S reviewed by

Jaytiss 7.8 Reviewer Score
B+ Tuning
B Tech
It's a solid set, with great build quality, but sonically isn't the specialist that I want it to be.

Jaytiss original ranking

Jaytiss Youtube Channel
Mids: A+ Treble: B Dynamics: A- Soundstage: B

Lime Ears Terra Details

Driver Configuration: 1DD+5BA

Tuning Type: U-Shaped

Brand: Lime Ears Top Lime Ears IEMs

Price (Msrp): $1,200

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64 Audio U4S Details

Driver Configuration: 1DD+3BA

Tuning Type: Neutral, Neutral with Bass Boost

Brand: 64 Audio Top 64 Audio IEMs

Price (Msrp): $1,100

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Lime Ears Terra Scorings

Average Technical & Tuning Grades

Average Tunign Grade

A
  • It presents a smooth, well-integrated tonal balance that plays nicely with many styles. It maintains natural timbre across the range.

Average Technical Grade

A+
  • The tuning feels expertly organized, marrying agile dynamics with well-defined spatial cues. Technical listeners will appreciate the poise.
Mids A-
Midrange performance is excellent, with natural timbre and great detail. Vocals feel lifelike and full-bodied.
Treble A+
The treble performance feels luxurious, marrying air, control, and excitement. You can place every high-frequency element.
Dynamics A-
It delivers crisp, authoritative dynamics that keep music thrilling. Subtle level shifts are clearly conveyed.
Soundstage A+
Three-dimensional layering becomes effortless, placing performers on a lifelike virtual stage. Venue ambience wraps around convincingly.

64 Audio U4S Scorings

Average Technical & Tuning Grades

Average Tunign Grade

B+
  • It sounds pleasant overall, with some uneven spots that hint at room for refinement. Vocals remain pleasant despite the imperfections.

Average Technical Grade

B
  • An honest, middle-of-the-road performance preserves structure without chasing micro-detail. It's respectable for everyday listening sessions.
Mids A+
Midrange quality is superb, rich with resolving power and transparency. Micro-details leap out effortlessly.
Treble B
Expect crisp, well-balanced treble that keeps shimmer intact. You hear reverbs decay naturally.
Dynamics A-
You get outstanding dynamic agility, from subtle nuances to big hits. Impact comes with quick recovery.
Soundstage B
Good soundstage with proper width and depth, placing instruments in clearly defined positions. Instruments sit in their own lanes.

Lime Ears Terra User Reviews

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64 Audio U4S User Reviews

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