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KZ PRX vs Tanchjim 4U: which should you buy?

On aggregated review scores the KZ PRX comes out ahead with a HearWiki score of 80. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: KZ PRX - Great overall at around $55.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

KZ PRX leads on 4 of 4 measures.

  • KZ PRX
  • Tanchjim 4U
HearWiki score
80
71
Sound
7.8
7.4
Value
8.6
7.7
Price (USD)
$55
$70

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Same generation

Both shipped in 2024. These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.

  • PRX2024
  • 4U2024

Specifications

PRX4U
Type
Wired IEMs
Wired IEMs
Price (USD)
$55
$70
HearWiki score
80
71
Released
2024
2024
Availability
Still sold new
Discontinued
Driver
planar magnetic
dynamic
Driver type
planar
dynamic
Impedance
15 Ω
32 Ω

What reviewers said

KZ PRX

The KZ PRX is a budget-friendly planar magnetic IEM that offers a balanced, warm-leaning sound with strong detail retrieval and capable imaging for its price. It excels in sub-bass presence and smooth mids, though it demands proper amplification and ear tips to perform at its best. Its soundstage is decent but not exceptionally wide, and the stock cable is a noted weak point.

  • Pro:Excellent value for a planar IEM
  • Pro:Balanced, warm sound with good detail
  • Pro:Strong imaging and separation for the price
  • Con:Requires a capable source and good ear tips
  • Con:Stock cable limits performance
  • Con:Soundstage is only medium-sized

Tanchjim 4U

The Tanchjim 4U is a wired dynamic IEM that stands out for its four adjustable tuning modes, letting you shift between different sound signatures. It delivers a detailed, engaging listen with a natural timbre, making it a versatile and comfortable choice for its modest price. While not a class leader, it offers solid performance and good value for both casual fans and hobbyists.

  • Pro:Four meaningful tuning modes
  • Pro:Detailed and engaging sound
  • Pro:Comfortable, well-rounded fit
  • Con:Tuning system feels limited in scope
  • Con:Bass impact may not satisfy everyone
  • Con:Not a standout in its class

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

Compare something else

Swap either side out, or start again from the picker.

New comparisonKZ PRXTanchjim 4U