The Rumaudio Blues ranks #551 out of 1061 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
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#551 Rumaudio Blues: $199.00 Shenzhenaudio $199.00 eBay
Pros: An all balanced armature IEM with six drivers per side. It measures reasonably close to the Harman target (score 70 across four measurements).
Cons: Bass sits about 2.0 dB below target, so it sounds lean. Sub-bass falls about 4.7 dB short at 30 Hz. A 2.43 dB spread from the target shows peaks and dips that better tuned sets avoid.
Is the Rumaudio Blues right for you?
Buy it if
- you are happy to use EQ: our preset lifts its Harman match by about 21 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $175 less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.43 dB standard deviation |
| Driver Type | Balanced Armature |
| Drivers | 6 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 70 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.7 dB at 30 Hz) |
| Tonal Tilt | +0.25 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -4.7 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 Harman match with this EQ: 91 out of 100, up from 70.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.3 dB | 0.70 |
| High shelf | 10,000 Hz | -4.7 dB | 0.70 |
| Peak | 25 Hz | +1.4 dB | 1.36 |
| Peak | 186 Hz | -3.4 dB | 0.71 |
| Peak | 3,471 Hz | +2.4 dB | 6.00 |
| Peak | 5,016 Hz | +4.2 dB | 1.27 |
| Peak | 7,657 Hz | -2.2 dB | 6.00 |
Neutral 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 92 out of 100, up from 56.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.2 dB | 0.70 |
| High shelf | 10,000 Hz | -4.7 dB | 0.70 |
| Peak | 186 Hz | -3.5 dB | 0.63 |
| Peak | 763 Hz | +1.3 dB | 3.04 |
| Peak | 3,470 Hz | +2.5 dB | 6.00 |
| Peak | 5,016 Hz | +4.2 dB | 1.27 |
| Peak | 7,657 Hz | -2.2 dB | 6.00 |
Studio flat target
Set a preamp of -5.2 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 Studio flat match with this EQ: 95 out of 100, up from 37.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.8 dB | 0.70 |
| High shelf | 10,000 Hz | +1.7 dB | 0.70 |
| Peak | 183 Hz | -5.4 dB | 0.70 |
| Peak | 784 Hz | +1.2 dB | 3.27 |
| Peak | 3,378 Hz | +5.2 dB | 1.81 |
| Peak | 4,484 Hz | -1.2 dB | 6.00 |
| Peak | 5,668 Hz | +2.3 dB | 6.00 |
| Peak | 7,709 Hz | -1.5 dB | 6.00 |
Warm target
Set a preamp of -5.0 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 Warm match with this EQ: 92 out of 100, up from 68.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.6 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 24 Hz | +1.4 dB | 1.50 |
| Peak | 81 Hz | -0.9 dB | 2.35 |
| Peak | 186 Hz | -3.2 dB | 0.74 |
| Peak | 783 Hz | +1.5 dB | 2.72 |
| Peak | 2,221 Hz | -1.6 dB | 2.74 |
| Peak | 3,515 Hz | +1.9 dB | 6.00 |
| Peak | 5,016 Hz | +2.1 dB | 1.55 |
| Peak | 7,774 Hz | -2.7 dB | 6.00 |
Bass target
Set a preamp of -5.7 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 Bass match with this EQ: 86 out of 100, up from 55.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.7 dB | 0.70 |
| High shelf | 10,000 Hz | -4.7 dB | 0.70 |
| Peak | 209 Hz | -3.4 dB | 0.92 |
| Peak | 3,471 Hz | +2.4 dB | 6.00 |
| Peak | 5,016 Hz | +4.2 dB | 1.27 |
| Peak | 7,657 Hz | -2.2 dB | 6.00 |
Bright 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 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 92 out of 100, up from 45.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.2 dB | 0.70 |
| High shelf | 10,000 Hz | -0.8 dB | 0.70 |
| Peak | 24 Hz | +0.9 dB | 1.35 |
| Peak | 79 Hz | -0.9 dB | 2.73 |
| Peak | 186 Hz | -3.5 dB | 0.61 |
| Peak | 760 Hz | +1.3 dB | 2.79 |
| Peak | 2,141 Hz | -1.1 dB | 2.60 |
| Peak | 3,535 Hz | +3.2 dB | 5.68 |
| Peak | 5,345 Hz | +5.8 dB | 1.03 |
| Peak | 6,887 Hz | -2.6 dB | 5.52 |
V-shaped 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 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 56.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.9 dB | 0.70 |
| High shelf | 10,000 Hz | +0.6 dB | 0.70 |
| Peak | 60 Hz | +0.9 dB | 2.41 |
| Peak | 219 Hz | -2.0 dB | 1.08 |
| Peak | 1,292 Hz | -0.9 dB | 4.20 |
| Peak | 2,201 Hz | -1.2 dB | 1.83 |
| Peak | 3,330 Hz | +1.1 dB | 6.00 |
| Peak | 4,056 Hz | +6.0 dB | 1.21 |
| Peak | 5,723 Hz | +3.1 dB | 6.00 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Rumaudio Blues 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 audioamigo, bedrock, flare and soundcheck39. Thanks to each of them for publishing their work.