Short answer: the InEar StageDiver SD5. It ranks #394 of 450 in-ear headphones by sound quality, rated 3.0/5, at $845. The Audio-Technica ATH-CK2000Ti ranks #396, rated 2.9/5, at $750, $95 cheaper, not enough of a saving to outweigh the sound-quality gap.
The case for the InEar StageDiver SD5: With a very high 120 dB sensitivity it reaches loud levels from any phone or stage monitor pack with almost no volume needed. The tradeoff: Its response deviates about 3.2 dB from target on average, an uneven tuning that colors many recordings.
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 catch: A preference score of 60 and a 2.97 dB deviation from the target mean the tonal balance is noticeably off for most listeners.
Buy the InEar StageDiver SD5. It is rated higher for sound quality, and the $95 you would save on the Audio-Technica ATH-CK2000Ti does not close the gap.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| InEar StageDiver SD5 | Audio-Technica ATH-CK2000Ti | |
|---|---|---|
| Price | $845.00 | $750.00 |
| Ranked | #394 of 450 in In-Ear Headphones | #396 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 61 (measured by crinacle, via AutoEQ) | 60 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 3.23 dB standard deviation | 2.97 dB standard deviation |
| Tonal Tilt | -0.34 (negative is warmer, positive brighter) | -0.77 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Sensitivity | 120 dB | 100 dB/mW |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | 5Hz - 45kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
| Driver Type | - | Dynamic |
| Drivers | - | 2 x dynamic (9.8mm + 8.8mm, dual phase push-pull) |
| Impedance | - | 10 ohms |
Related Headphone Comparisons
More top alternatives to InEar StageDiver SD5:
- FiiO FH5 vs InEar StageDiver SD5
- InEar StageDiver SD5 vs DUNU DK4001
- Audio-Technica ATH-CK2000Ti vs DUNU DK4001
- Fatfreq Reference Pro SE vs Audio-Technica ATH-CK2000Ti
- 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
InEar StageDiver SD5: $845.00 Thomann eBay
Pros: With a very high 120 dB sensitivity it reaches loud levels from any phone or stage monitor pack with almost no volume needed. Its preference score of 61 in crinacle’s measurement puts it level in rating with the FiiO FH5, which costs more.
Cons: Its response deviates about 3.2 dB from target on average, an uneven tuning that colors many recordings. Such high sensitivity can also reveal background hiss from noisy sources, and the Shanling ME700 matches its rating for considerably less.
Full InEar StageDiver SD5 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 3.23 dB standard deviation |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 61 (measured by crinacle, via AutoEQ) |
| Sensitivity | 120 dB |
| Tonal Tilt | -0.34 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -6.8 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 | +1.9 dB | 0.70 |
| Peak | 175 Hz | -4.2 dB | 0.67 |
| Peak | 4,577 Hz | +7.1 dB | 1.51 |
| Peak | 731 Hz | +2.8 dB | 2.02 |
| Peak | 6,942 Hz | -3.4 dB | 3.18 |
| High shelf | 10,000 Hz | +1.2 dB | 0.70 |
| Peak | 1,575 Hz | -2.7 dB | 1.84 |
| Peak | 1,000 Hz | +1.5 dB | 3.37 |
| Peak | 2,757 Hz | +1.4 dB | 3.24 |
| Peak | 488 Hz | +0.4 dB | 2.81 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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