The DUNU SA6 EST ranks #808 out of 1253 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: DUNU
Prices on this page were last checked October 16, 2026 at 5:46 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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#808 DUNU SA6 EST: $619 Amazon $619 eBay
Pros: A broadly balanced tuning with a preference score of 68 against the Harman target.
Cons: Treble about 6 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones. An uneven response, 2.5 dB standard deviation from target.
Is the DUNU SA6 EST right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 5.5 dB below target).
- you are happy to use EQ: our preset lifts its Harman match by about 19 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $595 less.
| Back | Closed |
|---|---|
| Connection | Wired (3.5mm / 4.4mm modular) |
| Deviation From Target | 2.55 dB standard deviation |
| Driver Type | Tribrid |
| Drivers | 6 Balanced Armature, 2 Electrostatic |
| Form Factor | In-ear |
| Harman Preference Score | 68 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.5 dB at 30 Hz) |
| Tonal Tilt | -0.41 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -6.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 87 out of 100, up from 68.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.7 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 96 Hz | -0.8 dB | 1.45 |
| Peak | 469 Hz | +1.2 dB | 1.83 |
| Peak | 1,314 Hz | -2.4 dB | 2.50 |
| Peak | 3,119 Hz | +2.7 dB | 3.19 |
| Peak | 5,345 Hz | +5.8 dB | 0.63 |
| Peak | 7,142 Hz | -3.7 dB | 5.18 |
Neutral target
Set a preamp of -6.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 89 out of 100, up from 39.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.9 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 89 Hz | -1.1 dB | 1.05 |
| Peak | 470 Hz | +1.2 dB | 1.89 |
| Peak | 1,315 Hz | -2.4 dB | 2.50 |
| Peak | 3,118 Hz | +2.7 dB | 3.18 |
| Peak | 5,345 Hz | +5.8 dB | 0.63 |
| Peak | 7,141 Hz | -3.7 dB | 5.18 |
Studio flat target
Set a preamp of -6.7 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 85 out of 100, up from 21.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.5 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 147 Hz | -2.5 dB | 0.99 |
| Peak | 558 Hz | +0.8 dB | 2.32 |
| Peak | 1,369 Hz | -3.0 dB | 1.59 |
| Peak | 2,773 Hz | +6.0 dB | 0.98 |
| Peak | 3,878 Hz | +1.1 dB | 4.48 |
| Peak | 5,151 Hz | +4.3 dB | 2.74 |
Warm target
Set a preamp of -6.3 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 92 out of 100, up from 76.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.9 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 467 Hz | +1.5 dB | 1.47 |
| Peak | 1,359 Hz | -2.1 dB | 2.90 |
| Peak | 3,255 Hz | +3.2 dB | 3.60 |
| Peak | 5,016 Hz | +5.8 dB | 0.98 |
| Peak | 7,176 Hz | -4.4 dB | 5.14 |
Bass target
Set a preamp of -6.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 89 out of 100, up from 64.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.8 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 464 Hz | +1.2 dB | 1.70 |
| Peak | 1,314 Hz | -2.4 dB | 2.50 |
| Peak | 3,119 Hz | +2.7 dB | 3.19 |
| Peak | 5,345 Hz | +5.8 dB | 0.63 |
| Peak | 7,142 Hz | -3.7 dB | 5.17 |
Bright target
Set a preamp of -6.6 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 76 out of 100, up from 27.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.9 dB | 0.70 |
| Peak | 89 Hz | -1.1 dB | 0.99 |
| Peak | 475 Hz | +1.2 dB | 1.94 |
| Peak | 1,421 Hz | -2.8 dB | 1.76 |
| Peak | 3,148 Hz | +6.0 dB | 0.97 |
| Peak | 5,408 Hz | +4.0 dB | 3.19 |
V-shaped target
Set a preamp of -6.6 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 7 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 74 out of 100, up from 57.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +6.0 dB | 0.70 |
| High shelf | 10,000 Hz | +0.8 dB | 0.70 |
| Peak | 75 Hz | +0.6 dB | 0.94 |
| Peak | 350 Hz | +1.8 dB | 0.76 |
| Peak | 976 Hz | -1.0 dB | 2.86 |
| Peak | 1,335 Hz | -3.1 dB | 2.11 |
| Peak | 3,148 Hz | +6.0 dB | 0.94 |
| Peak | 5,394 Hz | +3.8 dB | 3.26 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the DUNU SA6 EST measures across the audible range, against the Harman in-ear target that most listeners prefer in blind tests. Where the line sits above the target that range sounds louder (more bass, brighter treble), below it quieter. The curve is the median of 7 independent measurements, so one odd sample or rig cannot skew it, and both lines are shifted so their 500 Hz to 2 kHz average sits at 0 dB.
Measurement data: median of 7 measurements from the squig.link databases of atechreviews, ducbloke, eliseaudio, kazi, precog, soundignity and superreview. Thanks to each of them for publishing their work.