Short answer: the Audio-Technica ATH-CK2000Ti, though neither ranks well in its class. Both are rated 2.9/5 for sound quality (#396 and #401 of 450 in-ear headphones), and the Audio-Technica ATH-CK2000Ti costs $750 against $899 for the DUNU DK4001, and with sound quality even, the cheaper one is the better buy. Both are rated below 3.0/5 among the 450 in-ear headphones, and the ThieAudio Monarch MKIII, ranked #1 at $999, is a better place to start if sound quality matters.
Why pick the Audio-Technica ATH-CK2000Ti: The dual phase push-pull design uses two dynamic drivers (9.8mm and 8.8mm) per side, and the manufacturer quotes a very wide 5 Hz to 45 kHz range. The tradeoff: A preference score of 60 and a 2.97 dB deviation from the target mean the tonal balance is noticeably off for most listeners.
The case for the DUNU DK4001: Its hybrid design pairs a 13mm dynamic driver with four balanced armatures, and at 112 dB sensitivity and 32 ohms it plays loud from a phone. The tradeoff: Presence is about 8.1 dB under target and air about 7.7 dB under, with a 12 dB hole near 11.9 kHz, so vocals sound distant and cymbals lose shimmer.
Buy the Audio-Technica ATH-CK2000Ti. Both are rated the same for sound quality, and it costs $149 less than the DUNU DK4001.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| Audio-Technica ATH-CK2000Ti | DUNU DK4001 | |
|---|---|---|
| Price | $750.00 | $899.00 |
| Ranked | #396 of 450 in In-Ear Headphones | #401 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Harman Preference Score | 60 (measured by crinacle, via AutoEQ) | 60 (measured by HypetheSonics, via AutoEQ) |
| Deviation From Target | 2.97 dB standard deviation | 3.52 dB standard deviation |
| Tonal Tilt | -0.77 (negative is warmer, positive brighter) | +0.16 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (1 dynamic + 4 balanced armature) |
| Drivers | 2 x dynamic (9.8mm + 8.8mm, dual phase push-pull) | 1 x 13mm dynamic + 4 x balanced armature |
| Impedance | 10 ohms | 32 ohms |
| Sensitivity | 100 dB/mW | 112 dB |
| Frequency Response | 5Hz - 45kHz (Manufacturer specified) | 5Hz - 40kHz (Manufacturer specified) |
| Back | Closed | Closed |
| Sub-bass Extension | - | Within 6 dB of target down to 20 Hz (-5.1 dB at 30 Hz) |
| Built-in Microphone | - | No |
Related Headphone Comparisons
More top alternatives to Audio-Technica ATH-CK2000Ti:
- Fatfreq Reference Pro SE vs Audio-Technica ATH-CK2000Ti
- InEar StageDiver SD5 vs Audio-Technica ATH-CK2000Ti
- InEar StageDiver SD5 vs DUNU DK4001
- DUNU DK4001 vs Fidue A91 Sirius
- FiiO FH5 vs DUNU DK4001
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Headphones In Full
Audio-Technica ATH-CK2000Ti: $750.00 Amazon eBay
Pros: The dual phase push-pull design uses two dynamic drivers (9.8mm and 8.8mm) per side, and the manufacturer quotes a very wide 5 Hz to 45 kHz range. At 10 ohms and 100 dB/mW it works from a phone or portable player without a dedicated amp. Crinacle’s measurement gives a preference score of 60, with a mild warm tilt of about 0.8 dB.
Cons: A preference score of 60 and a 2.97 dB deviation from the target mean the tonal balance is noticeably off for most listeners. It is rated below the FiiO FH5 and well below the HIFIMAN RE2000, which offer more accurate tuning at similar money. No inline microphone or other convenience features are listed.
Full Audio-Technica ATH-CK2000Ti review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.97 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 2 x dynamic (9.8mm + 8.8mm, dual phase push-pull) |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 45kHz (Manufacturer specified) |
| Harman Preference Score | 60 (measured by crinacle, via AutoEQ) |
| Impedance | 10 ohms |
| Sensitivity | 100 dB/mW |
| Tonal Tilt | -0.77 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -6.5 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.7 dB | 0.70 |
| Peak | 172 Hz | -3.8 dB | 0.82 |
| Peak | 2,043 Hz | +6.0 dB | 2.32 |
| Peak | 788 Hz | +2.4 dB | 0.92 |
| Peak | 5,869 Hz | -6.2 dB | 4.43 |
| High shelf | 10,000 Hz | +0.4 dB | 0.70 |
| Peak | 9,575 Hz | +4.0 dB | 1.76 |
| Peak | 3,866 Hz | -4.4 dB | 4.04 |
| Peak | 2,847 Hz | +1.6 dB | 3.89 |
| Peak | 6,549 Hz | -1.4 dB | 6.00 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
DUNU DK4001: $899.00 HiFiGo eBay
Pros: Its hybrid design pairs a 13mm dynamic driver with four balanced armatures, and at 112 dB sensitivity and 32 ohms it plays loud from a phone. HypetheSonics’ measurement shows its best match is a warm, bass leaning taste, and its rating equals the Audio-Technica ATH-CK2000Ti. A preference score of 60 leaves plenty of room for listeners willing to apply EQ.
Cons: Presence is about 8.1 dB under target and air about 7.7 dB under, with a 12 dB hole near 11.9 kHz, so vocals sound distant and cymbals lose shimmer. A 6.1 dB peak near 7.7 kHz on top of that uneven treble, 3.52 dB of deviation overall, adds edginess to sibilants. Sub-bass sits about 5.2 dB low, and it rates below the Fatfreq Reference Pro SE and InEar StageDiver SD5.
Full DUNU DK4001 review and specifications →
| Released | 2019 (7 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 3.52 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 4 balanced armature) |
| Drivers | 1 x 13mm dynamic + 4 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 60 (measured by HypetheSonics, via AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 112 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-5.1 dB at 30 Hz) |
| Tonal Tilt | +0.16 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.4 dB | 0.70 |
| Peak | 5,069 Hz | +19.7 dB | 0.43 |
| Peak | 6,458 Hz | -20.0 dB | 1.04 |
| Peak | 1,949 Hz | -18.2 dB | 0.73 |
| Peak | 2,310 Hz | +12.4 dB | 1.07 |
| High shelf | 10,000 Hz | -4.6 dB | 0.70 |
| Peak | 176 Hz | -1.6 dB | 1.09 |
| Peak | 9,726 Hz | +3.0 dB | 3.09 |
| Peak | 705 Hz | +0.9 dB | 1.20 |
| Peak | 1,405 Hz | -1.0 dB | 3.61 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons