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KZ D-Fi vs TRN CS1: which should you buy?

Specs, scores and condensed review verdicts for the KZ D-Fi vs TRN CS1, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.

Score breakdown

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

KZ D-Fi leads on 3 of 4 measures.

  • KZ D-Fi
  • TRN CS1
HearWiki score
71
-
Sound
6.8
-
Value
8.5
-
Price (USD)
$16
$9

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

The KZ D-Fi is 3 years newer, but it is 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. For 3 years between them, that is a thin return - treat this as a restyle rather than a new platform.

  • D-Fi20223 yr newer
  • CS12019

Specifications

D-FiCS1
Type
Wired IEMs
Wired IEMs
Price (USD)
$16
$9
HearWiki score
71
Not scored
Released
2022
2019
Availability
Still sold new
Discontinued
Driver
10 mm dynamic
10 mm dynamic
Driver type
dynamic
dynamic
Driver size
10 mm
10 mm
Drivers per side
1
1
Frequency response
7 Hz - 45 kHz
20 Hz - 20 kHz
Impedance
23.5 Ω
16 Ω
Sensitivity
110 dB/mW
108 dB/mW
Active noise cancelling
No
No
ANC type
none
-
Transparency mode
No
-
Companion app
No
-
Custom EQ
Yes
-
Wear detection
No
-
Controls
buttons
-
Water resistance
-
none
Detachable cable
Yes
Yes
USB-C
No
-
Connector
3.5 mm
-
Microphones
1
-

What reviewers said

KZ D-Fi

The KZ D-Fi is a budget-friendly wired IEM featuring a single 10mm dynamic driver and adjustable tuning switches, offering a versatile sound signature for the price. It delivers a balanced, controlled presentation with good detail and easy drivability, though its technical performance and stock accessories are modest. This is a solid pick for listeners seeking an affordable, tunable earphone with a comfortable fit.

  • Pro:Adjustable tuning switches for sound customization
  • Pro:Balanced, non-fatiguing sound with good detail for the price
  • Pro:Lightweight and comfortable for extended listening
  • Con:Average technical performance and soundstage
  • Con:Mid-bass texture and treble extension could be better
  • Con:Stock cable and fit may not suit all users

TRN CS1

The TRN CS1 is an affordable wired in-ear monitor featuring a single 10mm dynamic driver that delivers a well-balanced audio profile. Its lightweight aluminum build and included foam ear tips provide dependable comfort and strong passive sound isolation, making it a solid everyday option for commuters or those who prioritize clear vocal reproduction.

  • Pro:Balanced, natural sound signature
  • Pro:Excellent passive isolation with included foam tips
  • Pro:Durable aluminum construction
  • Con:No active noise cancellation
  • Con:Not water-resistant
  • Con:Limited bass extension for bass-heavy listeners

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 D-FiTRN CS1