Penon Serial VS Letshuoer S15

Penon Serial and Letshuoer S15 are in-ear monitors. Penon Serial costs $300 while Letshuoer S15 costs $329. Letshuoer S15 is $29 more expensive. Letshuoer S15 holds a decisive 2.7-point edge in reviewer scores (5.3 vs 8). Letshuoer S15 has significantly better mids with a 3-point edge, Letshuoer S15 has significantly better treble with a 3-point edge, Letshuoer S15 has significantly better dynamics with a 2-point edge and Letshuoer S15 has significantly better soundstage with a 1-point edge.

Jaytiss Score

Penon Serial

5.3 /10

Jaytiss Score

Letshuoer S15

8 /10

Score gap: 2.7

Metric	Penon Serial	Letshuoer S15
Mids	5	8
Treble	4	7
Soundstage	6	7
Dynamics	4	6
Tonality	4.3	7
Technicalities	4	7

Take these comparisons with a grain of salt—we don't have enough Penon Serial and Letshuoer S15 reviews saved yet to provide an unbiased result.

Jaytiss Reviews Comparison

Penon Serial reviewed by

5.3 Reviewer Score

C- Tuning

C- Tech

Lacks in bass, low pinna gain, but overall not bad, just expensive.

Jaytiss original ranking

Jaytiss Youtube Channel

Mids: C+ Treble: C- Dynamics: C- Soundstage: B

Letshuoer S15 reviewed by

2025-07-16

8 Reviewer Score

A- Tuning

A- Tech

Nice Clarity, good detail. I feel it should have got more love.

Jaytiss original ranking

Jaytiss Youtube Channel

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

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Price: $329

Buy Letshuoer S15 on Linsoul

Driver Configuration: 3DD

Tuning Type: n/a

Price (Msrp): $300

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Driver Configuration:

Tuning Type: n/a

Brand: Letshuoer Top Letshuoer IEMs

Price (Msrp): $329

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$329

Buy Letshuoer S15 on

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Penon Serial Scorings

Average Tunign Grade

C-

Uneven emphasis across the spectrum keeps the presentation unsettled and awkward. Acoustic instruments lose their natural body.

Average Technical Grade

C-

Textural information blurs together, making the stage feel pinched and gray. Instrument edges blur together frequently.

Mids C+

The region sounds agreeable overall, delivering clarity without flashiness. Slight warmth keeps things easy-going.

Treble C-

Highs are present enough yet carry a bit of grain and splash. Busy mixes can still feel a bit splashy.

Dynamics C-

It maintains a steady dynamic profile that neither offends nor inspires. Swells arrive but lack drama.

Soundstage B

You can map the ensemble with confidence thanks to solid spacing and coherent depth layering. Ambient effects feel believable.

Letshuoer S15 Scorings

Average Tunign Grade

A-

A smooth, agreeable balance keeps the presentation engaging without obvious flaws. Only sensitive ears will nitpick the bumps.

Average Technical Grade

A-

Technical chops are reliable, pairing tidy separation with a soundstage that stays conservative. Micro-detail is decent, though never spotlighted.

Mids A+

It offers a luxurious, resolving midrange that captures micro-detail beautifully. Every vocal inflection is captured.

Treble A-

The treble is exquisitely tuned, combining crystal detail with relaxed delivery. Micro-details emerge effortlessly.

Dynamics B

Dynamic expression is good, delivering solid impact and convincing contrast. Percussion lands with convincing weight.

Soundstage A-

All dimensions bloom together, producing an expansive venue that feels carefully rendered. You can map the ensemble easily.

Penon Serial User Reviews

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Letshuoer S15 User Reviews