The Acoustune Monitor RS ONE ranks #842 out of 1253 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Acoustune
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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#842 Acoustune Monitor RS ONE: $139.29 Amazon $139.29 eBay
Pros: A broadly balanced tuning with a preference score of 67 against the Harman target. About 4 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end.
Cons: Treble about 3 dB above target from 3 to 10 kHz, which can sound sharp or tiring at higher volume. An uneven response, 2.5 dB standard deviation from target.
Is the Acoustune Monitor RS ONE right for you?
Buy it if
- you like extra bass (about +4 dB below 150 Hz versus the target).
- 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 20 points.
Skip it if
- you are treble-sensitive (treble sits about 2.9 dB above target).
- you want the best value: the higher-rated EPZ G10 costs about $116 less.
| Back | Closed |
|---|---|
| Connection | Wired (3.5mm) |
| Deviation From Target | 2.46 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 Dynamic (9.2mm Myrinx EL) |
| Form Factor | In-ear |
| Harman Preference Score | 67 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.8 dB at 30 Hz) |
| Tonal Tilt | -0.33 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -0.4 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 87 out of 100, up from 67.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -2.5 dB | 0.70 |
| High shelf | 10,000 Hz | -1.3 dB | 0.70 |
| Peak | 177 Hz | -6.5 dB | 0.73 |
| Peak | 2,712 Hz | -3.5 dB | 5.64 |
| Peak | 4,153 Hz | +2.3 dB | 5.29 |
| Peak | 5,785 Hz | -7.3 dB | 2.38 |
Neutral target
Set a preamp of -1.3 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 91 out of 100, up from 34.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.1 dB | 0.70 |
| High shelf | 10,000 Hz | -1.3 dB | 0.70 |
| Peak | 23 Hz | +1.4 dB | 1.87 |
| Peak | 169 Hz | -6.3 dB | 0.66 |
| Peak | 314 Hz | -0.8 dB | 2.68 |
| Peak | 846 Hz | +1.9 dB | 2.51 |
| Peak | 2,712 Hz | -3.5 dB | 5.67 |
| Peak | 4,153 Hz | +2.3 dB | 5.29 |
| Peak | 5,785 Hz | -7.3 dB | 2.38 |
| Peak | 7,784 Hz | -1.7 dB | 6.00 |
Studio flat 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 86 out of 100, up from 14.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 175 Hz | -8.6 dB | 0.74 |
| Peak | 885 Hz | +1.7 dB | 2.05 |
| Peak | 3,837 Hz | +1.7 dB | 4.29 |
| Peak | 5,706 Hz | -9.8 dB | 3.13 |
| Peak | 7,530 Hz | -1.8 dB | 6.00 |
Warm target
Set a preamp of -1.6 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: 90 out of 100, up from 68.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -2.3 dB | 0.70 |
| High shelf | 10,000 Hz | -4.8 dB | 0.70 |
| Peak | 23 Hz | +1.8 dB | 1.50 |
| Peak | 174 Hz | -6.3 dB | 0.76 |
| Peak | 853 Hz | +2.2 dB | 2.51 |
| Peak | 2,691 Hz | -3.6 dB | 5.79 |
| Peak | 4,143 Hz | +3.1 dB | 5.46 |
| Peak | 5,980 Hz | -7.9 dB | 1.12 |
Bass target
Set a preamp of -1.2 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 88 out of 100, up from 67.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.3 dB | 0.70 |
| High shelf | 10,000 Hz | -1.3 dB | 0.70 |
| Peak | 179 Hz | -6.5 dB | 0.75 |
| Peak | 2,711 Hz | -3.5 dB | 5.63 |
| Peak | 4,153 Hz | +2.3 dB | 5.30 |
| Peak | 5,785 Hz | -7.3 dB | 2.37 |
Bright target
Set a preamp of -2.5 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: 90 out of 100, up from 27.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.1 dB | 0.70 |
| High shelf | 10,000 Hz | +1.4 dB | 0.70 |
| Peak | 23 Hz | +1.4 dB | 1.90 |
| Peak | 169 Hz | -6.4 dB | 0.65 |
| Peak | 314 Hz | -0.7 dB | 2.69 |
| Peak | 843 Hz | +1.8 dB | 2.59 |
| Peak | 2,691 Hz | -3.1 dB | 6.00 |
| Peak | 4,064 Hz | +2.8 dB | 4.89 |
| Peak | 5,586 Hz | -5.3 dB | 6.00 |
V-shaped 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 87 out of 100, up from 72.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.9 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 23 Hz | +1.9 dB | 1.43 |
| Peak | 173 Hz | -5.1 dB | 0.75 |
| Peak | 821 Hz | +1.2 dB | 2.75 |
| Peak | 2,717 Hz | -2.6 dB | 6.00 |
| Peak | 4,093 Hz | +3.2 dB | 5.30 |
| Peak | 5,567 Hz | -4.0 dB | 6.00 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Acoustune Monitor RS ONE 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 bryaudioreviews, hbb, practiphile and superreview. Thanks to each of them for publishing their work.