The Elysian Apostle ranks #550 out of 1061 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Elysian
Prices on this page were last checked October 15, 2026 at 5:41 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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#550 Elysian Apostle: $1,799.00 Bloom Audio $1,799.00 eBay
Pros: A tribrid flagship with a dynamic driver, two balanced armatures and two electrostatic tweeters. Measurements show bass right on the Harman target and full sub-bass to 20 Hz (score 70 across three measurements).
Cons: Treble sits about 4.5 dB below target, a dark, relaxed balance. A 2.32 dB spread from the target shows peaks and dips that better tuned sets avoid. It is now sold as the Apostle 2026 with a new shell, and the measurements cover the original. Very expensive for its rating. Its score rests on three measurements.
Is the Elysian Apostle right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 4.5 dB below 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 16 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $1,775 less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.32 dB standard deviation |
| Driver Type | Tribrid |
| Drivers | 1 x dynamic + 2 x balanced armature + 2 x electrostatic |
| Form Factor | In-ear |
| Harman Preference Score | 70 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 10 ohms |
| Sensitivity | 97 dB @1kHz |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.0 dB at 30 Hz) |
| Tonal Tilt | -0.51 (negative is warmer, positive brighter) |
EQ Presets
Harman 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 86 out of 100, up from 70.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.1 dB | 0.70 |
| High shelf | 10,000 Hz | -1.5 dB | 0.70 |
| Peak | 91 Hz | -1.0 dB | 1.35 |
| Peak | 656 Hz | +1.1 dB | 2.04 |
| Peak | 1,434 Hz | -2.4 dB | 3.51 |
| Peak | 2,900 Hz | +2.2 dB | 4.44 |
| Peak | 4,013 Hz | -1.7 dB | 6.00 |
| Peak | 5,345 Hz | +5.2 dB | 0.87 |
| Peak | 6,895 Hz | -2.1 dB | 6.00 |
Neutral 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 86 out of 100, up from 36.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.4 dB | 0.70 |
| High shelf | 10,000 Hz | -1.5 dB | 0.70 |
| Peak | 80 Hz | -1.4 dB | 1.13 |
| Peak | 1,435 Hz | -2.4 dB | 3.51 |
| Peak | 2,066 Hz | +0.4 dB | 0.40 |
| Peak | 2,900 Hz | +2.2 dB | 4.44 |
| Peak | 4,013 Hz | -1.7 dB | 6.00 |
| Peak | 5,345 Hz | +5.2 dB | 0.87 |
| Peak | 6,896 Hz | -2.1 dB | 6.00 |
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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 89 out of 100, up from 19.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.6 dB | 0.70 |
| Peak | 144 Hz | -2.4 dB | 0.71 |
| Peak | 685 Hz | +1.0 dB | 2.97 |
| Peak | 1,430 Hz | -2.9 dB | 2.73 |
| Peak | 2,476 Hz | +2.2 dB | 6.00 |
| Peak | 3,354 Hz | +5.5 dB | 0.94 |
| Peak | 5,603 Hz | +4.0 dB | 5.62 |
Warm 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 90 out of 100, up from 79.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.4 dB | 0.70 |
| High shelf | 10,000 Hz | -5.0 dB | 0.70 |
| Peak | 660 Hz | +1.4 dB | 1.64 |
| Peak | 1,468 Hz | -2.3 dB | 3.98 |
| Peak | 2,937 Hz | +2.5 dB | 4.38 |
| Peak | 4,088 Hz | -1.9 dB | 6.00 |
| Peak | 5,419 Hz | +6.0 dB | 2.05 |
Bass target
Set a preamp of -5.9 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 3 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 | +4.9 dB | 0.70 |
| High shelf | 10,000 Hz | -1.5 dB | 0.70 |
| Peak | 24 Hz | +1.0 dB | 1.88 |
| Peak | 91 Hz | -0.9 dB | 1.17 |
| Peak | 656 Hz | +1.1 dB | 2.02 |
| Peak | 1,434 Hz | -2.4 dB | 3.51 |
| Peak | 2,900 Hz | +2.2 dB | 4.44 |
| Peak | 4,013 Hz | -1.7 dB | 6.00 |
| Peak | 5,345 Hz | +5.2 dB | 0.87 |
| Peak | 6,894 Hz | -2.1 dB | 6.00 |
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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 74 out of 100, up from 24.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.5 dB | 0.70 |
| High shelf | 10,000 Hz | +1.2 dB | 0.70 |
| Peak | 1,435 Hz | -2.6 dB | 3.40 |
| Peak | 4,332 Hz | +6.0 dB | 1.00 |
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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 75 out of 100, up from 61.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.4 dB | 0.70 |
| High shelf | 10,000 Hz | +1.9 dB | 0.70 |
| Peak | 341 Hz | +1.3 dB | 0.69 |
| Peak | 1,429 Hz | -3.1 dB | 2.69 |
| Peak | 3,573 Hz | +6.0 dB | 1.00 |
| Peak | 5,554 Hz | +3.4 dB | 5.05 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Elysian Apostle 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 3 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 3 measurements from the squig.link databases of aden, eliseaudio and smirk. Thanks to each of them for publishing their work.