The Roseselsa Ceramics X ranks #1017 out of 1398 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Roseselsa
Prices on this page were last checked October 19, 2026 at 10:32 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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#1017 Roseselsa Ceramics X: $45.99 TWS Discontinued eBay
Newer model: the Roseselsa Ceramics MK2, ranked higher, rated 3.9/5, released 2026. Battery life goes from 10 to 12 hours. See every Roseselsa Ceramics generation.
Pros: True wireless earbuds with ANC, LDAC, Bluetooth 5.3 and a rated 10 hours per charge or 40 with the case, whose bass and midrange stay within 2.5 dB of target with sub bass reaching to 20 Hz.
Cons: Treble from 5 to 8 kHz sits nearly 6 dB low with dips near 6.1 and 10.9 kHz, so it sounds dark and lacks detail. It is discontinued, replaced by the Roseselsa Ceramics MK2.
Is the Roseselsa Ceramics X right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 4.1 dB below target).
- you want sub-bass rumble that reaches down to 20 Hz.
- you want noise cancelling for commutes or flights.
- you are happy to use EQ: our preset lifts its Harman match by about 23 points.
Skip it if
- you want to buy it new: it is discontinued.
| Released | 2024 (2 years ago) |
|---|---|
| Active Noise Cancelling | Yes |
| Back | Closed |
| Battery Life | 10 hours (earbuds), 40 hours total with case |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Connection | True wireless |
| Deviation From Target | 2.61 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic (carbon nanotube diaphragm) |
| Form Factor | In-ear |
| Harman Preference Score | 64 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) |
| Tonal Tilt | -0.91 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -6.0 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 87 out of 100, up from 64.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 23 Hz | -1.8 dB | 3.20 |
| Peak | 46 Hz | +1.7 dB | 3.37 |
| Peak | 141 Hz | -3.2 dB | 0.95 |
| Peak | 1,198 Hz | -1.2 dB | 4.35 |
| Peak | 2,138 Hz | +1.1 dB | 3.46 |
| Peak | 5,345 Hz | +6.0 dB | 1.26 |
Neutral target
Set a preamp of -6.0 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 88 out of 100, up from 28.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.8 dB | 0.70 |
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 23 Hz | -2.0 dB | 3.03 |
| Peak | 46 Hz | +1.5 dB | 3.63 |
| Peak | 132 Hz | -3.3 dB | 0.93 |
| Peak | 1,197 Hz | -1.2 dB | 4.34 |
| Peak | 2,138 Hz | +1.1 dB | 3.47 |
| Peak | 5,345 Hz | +6.0 dB | 1.26 |
Studio flat target
Set a preamp of -4.9 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 87 out of 100, up from 10.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.7 dB | 0.70 |
| Peak | 24 Hz | -1.0 dB | 2.08 |
| Peak | 53 Hz | +1.3 dB | 3.21 |
| Peak | 150 Hz | -4.9 dB | 0.77 |
| Peak | 1,200 Hz | -1.4 dB | 2.79 |
| Peak | 2,404 Hz | +2.2 dB | 3.82 |
| Peak | 5,016 Hz | +4.8 dB | 0.67 |
| Peak | 7,019 Hz | -2.6 dB | 6.00 |
Warm 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 88 out of 100, up from 74.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 10,000 Hz | -5.8 dB | 0.70 |
| Peak | 45 Hz | +1.8 dB | 3.07 |
| Peak | 138 Hz | -3.0 dB | 1.11 |
| Peak | 5,432 Hz | +5.9 dB | 2.10 |
Bass target
Set a preamp of -6.0 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 87 out of 100, up from 69.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.5 dB | 0.70 |
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 45 Hz | +2.1 dB | 2.65 |
| Peak | 141 Hz | -3.1 dB | 1.09 |
| Peak | 1,193 Hz | -1.2 dB | 4.17 |
| Peak | 2,138 Hz | +1.1 dB | 3.49 |
| Peak | 5,345 Hz | +6.0 dB | 1.27 |
Bright target
Set a preamp of -6.1 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 76 out of 100, up from 16.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.9 dB | 0.70 |
| High shelf | 10,000 Hz | +0.5 dB | 0.70 |
| Peak | 132 Hz | -3.3 dB | 0.92 |
| Peak | 4,586 Hz | +6.0 dB | 1.15 |
V-shaped target
Set a preamp of -6.1 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 69 out of 100, up from 57.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.2 dB | 0.70 |
| High shelf | 10,000 Hz | +1.5 dB | 0.70 |
| Peak | 4,321 Hz | +6.0 dB | 1.07 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Roseselsa Ceramics X 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 4 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 4 measurements from the squig.link databases of hobbytalk, practiphile, regancipher and suporsalad. Thanks to each of them for publishing their work.
Head-to-Head Comparisons
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