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TRN CS3Image © TRN

TRN CS3

49/ 100
Weak
HearWiki score

Pricey for what it is

$5
typical price, USD
Discontinuedupdated price check
Manufacturer pageBuy now onAmazon

At a glance

Brand
TRN
Type
Wired IEMs
Fit
-
Connection
Wired
Noise cancelling
No
Released
2021

Score breakdownweak overall

Sound4.7

The TRN CS3 is a compact, lightweight in-ear monitor with a 6mm composite diaphragm dynamic driver, featuring a CNC-machined aviation aluminum body and tri-band equalization for clear, natural sound.

The HearWiki takeAI-condensed

The TRN CS3 is an ultra-affordable, lightweight wired IEM with a single 6mm dynamic driver that delivers a bass-forward, lively sound with a surprisingly wide soundstage for its tiny size. It's built for comfort and everyday use at a very low price, though its technical performance in clarity and detail is only moderate compared to pricier models. This makes it a solid choice for casual listeners after a fun, budget-friendly tune.

What works

  • Very affordable price
  • Lightweight and comfortable fit
  • Wide soundstage for the size
  • Bass-forward, lively tuning

What doesn't

  • Moderate clarity and resolution
  • Limited detail and layering
  • Non-detachable cable

Paraphrased from published reviews & specs - not an original hands-on test. Our AI disclosure.

Specifications

Audio - TRN CS3
Driver6 mm dynamic
Driver typedynamic
Driver size6 mm
Drivers per side1
Frequency response20 Hz - 20 kHz
Impedance18 Ω
Sensitivity118 dB/mW

What the reviews said

3 source(s) feeding this product's score.

ixbt.com

The reviewer describes the CS3 Micro as a very small, inexpensive in-ear model with a surprisingly spacious presentation and strong bass emphasis. The overall impression is favorable for the price, though resolution and layering are described as below what the reviewer expected.

Read the full review

mobileaudiophile.com

This first-impressions review finds the CS3 lively and bass-forward, with a wide soundstage and a tuning that works well for some genres. The reviewer also notes that clarity, layering, and resolution are only moderate, but still considers it a compelling ultra-budget daily driver.

Read the full review

trn-audio.com

TRN presents the CS3 as an affordable hybrid in-ear monitor with a 3.5 mm wired setup and lightweight design. The official page emphasizes its basic specs rather than a performance review, but it establishes the model as a low-cost, comfort-focused entry in TRN's lineup.

Read the full review

What YouTube reviewers say

Video reviews we found, each condensed to its verdict. They do feed the HearWiki score, at a measured weight below what a published written review carries.

The consensus

Mixedacross 3 videos

Reviewers agree the TRN CS3 is a very affordable, lightweight budget earphone with a warm, bass-forward sound and decent build quality for its price.

Reviewers liked

  • Very cheap price
  • Lightweight and comfortable
  • Warm, bass-forward tuning

Reviewers flagged

  • Non-detachable cable
  • Average soundstage and imaging
  • Limited treble detail
9:08

[GIVEAWAY] New Budget TRN IEM | TRN CS3 & TRN MTE Full Detail Review | Better Then TRN MT1 Pro??

Unbox Freaker2K viewsSep 2022

The reviewer compares the TRN CS3 with the TRN MTE, noting that the CS3 is a lightweight, comfortable, non-detachable earphone with a micro dynamic driver. He finds the CS3's sound signature bass-focused with average soundstage and imaging, while the MTE offers a fun, V-shaped sound with elevated bass. Overall, he suggests the CS3 is a decent budget option but not necessarily better than the MTE in all aspects.

17:37

TRN CS3 Review | 5 Dollar "Sleeper" Hit

Lumerion1.7K viewsMay 2022

The reviewer finds the TRN CS3 to be a surprisingly capable budget earphone for its $5 price, praising its powerful bass and warm, smooth tuning while noting significant compromises in cable quality, technicalities, and treble refinement. They conclude it's a worthwhile 'sleeper' hit for bass lovers and sleep use, though not for those seeking balanced or detailed sound.

3:55

TRN CS3 1DD Earphone Debuts as the company's new budget Earbuds after releasing their TRN BT3S PRO

AV Atmos407 viewsMay 2022

The reviewer presents the TRN CS3 as a very affordable, old-school style earbud with a single 6mm dynamic driver. They note that while the build and design are decent for the price, the non-detachable cable is a significant durability concern, and the small driver limits bass output. Overall, they consider it a good budget option for most people, with the cable being the main drawback.

Summaries are AI condensations of each video's own conclusion, not transcripts. Titles, thumbnails and view counts belong to their channels.

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Alternatives in the $3–$10 range

Other wired iems models at a comparable price, ordered by HearWiki score.

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Where it sits in our rankings

The data-driven guides this model qualifies for.