The Rose Technics QuietSea ranks #538 out of 1253 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Rose Technics
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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#538 Rose Technics QuietSea: $49.99 Discontinued Amazon $49.99 eBay
Pros: A broadly balanced tuning with a preference score of 72 against the Harman target.
Cons: An uneven response, 2.3 dB standard deviation from target. Discontinued.
Is the Rose Technics QuietSea right for you?
Buy it if
- you want sub-bass rumble that reaches down to 20 Hz.
- you are happy to use EQ: our preset lifts its Harman match by about 15 points.
Skip it if
- you want to buy it new: it is discontinued.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.26 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Harman Preference Score | 72 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.8 dB at 30 Hz) |
| Tonal Tilt | -0.12 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -3.6 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 87 out of 100, up from 72.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 10,000 Hz | -2.2 dB | 0.70 |
| Peak | 23 Hz | +1.9 dB | 1.19 |
| Peak | 179 Hz | -5.1 dB | 0.77 |
| Peak | 2,160 Hz | -3.1 dB | 4.95 |
| Peak | 3,398 Hz | +2.8 dB | 5.93 |
| Peak | 6,084 Hz | +3.8 dB | 6.00 |
Neutral target
Set a preamp of -3.7 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 87 out of 100, up from 44.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.2 dB | 0.70 |
| High shelf | 10,000 Hz | -2.2 dB | 0.70 |
| Peak | 174 Hz | -5.1 dB | 0.67 |
| Peak | 2,162 Hz | -3.1 dB | 5.03 |
| Peak | 3,398 Hz | +2.8 dB | 5.91 |
| Peak | 6,083 Hz | +3.9 dB | 6.00 |
Studio flat target
Set a preamp of -4.3 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 91 out of 100, up from 26.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.8 dB | 0.70 |
| High shelf | 10,000 Hz | +1.5 dB | 0.70 |
| Peak | 175 Hz | -6.9 dB | 0.71 |
| Peak | 2,073 Hz | -1.4 dB | 6.00 |
| Peak | 3,192 Hz | +4.4 dB | 4.84 |
| Peak | 4,784 Hz | -4.0 dB | 6.00 |
| Peak | 6,155 Hz | +2.0 dB | 4.92 |
Warm target
Set a preamp of -2.1 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 90 out of 100, up from 72.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.5 dB | 0.70 |
| High shelf | 10,000 Hz | -5.9 dB | 0.70 |
| Peak | 23 Hz | +1.7 dB | 1.39 |
| Peak | 174 Hz | -4.8 dB | 0.75 |
| Peak | 803 Hz | +1.7 dB | 1.99 |
| Peak | 2,196 Hz | -4.0 dB | 3.84 |
| Peak | 3,464 Hz | +1.6 dB | 5.76 |
| Peak | 4,762 Hz | -4.8 dB | 6.00 |
| Peak | 7,954 Hz | -2.7 dB | 6.00 |
Bass target
Set a preamp of -5.8 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 90 out of 100, up from 64.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.1 dB | 0.70 |
| High shelf | 10,000 Hz | -2.3 dB | 0.70 |
| Peak | 23 Hz | +1.8 dB | 1.23 |
| Peak | 177 Hz | -5.1 dB | 0.75 |
| Peak | 2,154 Hz | -3.1 dB | 5.24 |
| Peak | 3,464 Hz | +2.8 dB | 4.62 |
| Peak | 4,829 Hz | -2.6 dB | 6.00 |
| Peak | 6,085 Hz | +3.9 dB | 6.00 |
Bright target
Set a preamp of -5.6 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 90 out of 100, up from 34.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.3 dB | 0.70 |
| High shelf | 10,000 Hz | +1.2 dB | 0.70 |
| Peak | 174 Hz | -5.1 dB | 0.67 |
| Peak | 794 Hz | +1.5 dB | 1.93 |
| Peak | 2,163 Hz | -3.0 dB | 4.59 |
| Peak | 3,523 Hz | +4.1 dB | 5.22 |
| Peak | 5,831 Hz | +5.7 dB | 4.05 |
V-shaped 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 Speaker Ranking from the median of 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 86 out of 100, up from 65.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.7 dB | 0.70 |
| High shelf | 10,000 Hz | +1.9 dB | 0.70 |
| Peak | 25 Hz | +1.6 dB | 1.38 |
| Peak | 174 Hz | -3.7 dB | 0.76 |
| Peak | 2,156 Hz | -2.8 dB | 4.00 |
| Peak | 3,432 Hz | +2.8 dB | 6.00 |
| Peak | 5,299 Hz | +3.5 dB | 1.08 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Rose Technics QuietSea 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 5 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 5 measurements from the squig.link databases of audioamigo, harpo, mmagtech, soundcheck39 and soundignity. Thanks to each of them for publishing their work.