Short answer: the HIFIMAN RE2000 Pro. It ranks #385 of 450 in-ear headphones by sound quality, rated 3.1/5, at $2,000; the Shure KSE1500 ranks #405, rated 2.8/5, and costs $2,999, so there is little reason to consider the other one.
The HIFIMAN RE2000 Pro is the better-sounding option. A single dynamic driver in-ear with a preference score of 63 in crinacle’s measurement, close to the similarly priced 64 Audio U18S in rating. The tradeoff: Its response deviates about 2.9 dB from target on average, so its tuning is noticeably uneven for the money.
The case for the Shure KSE1500: It is one of very few electrostatic in-ears, with a claimed 10 Hz to 50 kHz range. Watch for: In oratory1990’s measurement the presence band from 3 to 6 kHz sits about 8.6 dB below target with a 9.5 dB dip near 4.1 kHz, which recesses vocals and instrument attack, while a 9.9 dB peak near 9.4 kHz can make cymbals and sibilance hiss.
Buy the HIFIMAN RE2000 Pro. It is rated higher for sound quality than the Shure KSE1500 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| HIFIMAN RE2000 Pro | Shure KSE1500 | |
|---|---|---|
| Price | $2,000.00 | $2,999.00 |
| Ranked | #385 of 450 in In-Ear Headphones | #405 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 63 (measured by crinacle, via AutoEQ) | 59 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 2.90 dB standard deviation | 3.55 dB standard deviation |
| Tonal Tilt | -0.49 (negative is warmer, positive brighter) | -0.27 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Electrostatic |
| Impedance | 60 ohms | - |
| Sensitivity | 103 dB | - |
| Frequency Response | 5Hz - 20kHz (Manufacturer specified) | 10Hz - 50kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
| Sub-bass Extension | - | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) |
| Drivers | - | 1 x electrostatic |
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- 64 Audio A12t vs HIFIMAN RE2000 Pro
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- 64 Audio U12t vs HIFIMAN RE2000 Pro
- 64 Audio U18S vs HIFIMAN RE2000 Pro
- HIFIMAN RE2000 Pro vs 64 Audio Volur
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Headphones In Full
HIFIMAN RE2000 Pro: $2,000.00 HIFIMAN eBay
Pros: A single dynamic driver in-ear with a preference score of 63 in crinacle’s measurement, close to the similarly priced 64 Audio U18S in rating. The closed design isolates well from outside noise.
Cons: Its response deviates about 2.9 dB from target on average, so its tuning is noticeably uneven for the money. The Sennheiser IE 900 earns the same rating at a lower price.
Full HIFIMAN RE2000 Pro review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.90 dB standard deviation |
| Driver Type | Dynamic |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 63 (measured by crinacle, via AutoEQ) |
| Impedance | 60 ohms |
| Sensitivity | 103 dB |
| Tonal Tilt | -0.49 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -5.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.5 dB | 0.70 |
| Peak | 167 Hz | -5.0 dB | 0.52 |
| Peak | 877 Hz | +5.7 dB | 1.19 |
| Peak | 5,770 Hz | +4.5 dB | 1.11 |
| Peak | 4,718 Hz | -7.7 dB | 3.53 |
| High shelf | 10,000 Hz | -3.7 dB | 0.70 |
| Peak | 9,705 Hz | +2.4 dB | 2.87 |
| Peak | 2,076 Hz | +1.4 dB | 3.20 |
| Peak | 1,366 Hz | -1.9 dB | 3.84 |
| Peak | 1,069 Hz | +1.2 dB | 4.83 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Shure KSE1500: $2,999.00 Amazon eBay
Pros: It is one of very few electrostatic in-ears, with a claimed 10 Hz to 50 kHz range. Its warm, V-shaped balance suits listeners who like low end weight paired with an emphasized top.
Cons: In oratory1990’s measurement the presence band from 3 to 6 kHz sits about 8.6 dB below target with a 9.5 dB dip near 4.1 kHz, which recesses vocals and instrument attack, while a 9.9 dB peak near 9.4 kHz can make cymbals and sibilance hiss. A preference score of 59 at such a steep price makes it hard to justify on sound alone.
Full Shure KSE1500 review and specifications →
| Released | Oct 2015 (11 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 3.55 dB standard deviation |
| Driver Type | Electrostatic |
| Drivers | 1 x electrostatic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 50kHz (Manufacturer specified) |
| Harman Preference Score | 59 (measured by oratory1990, via AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) |
| Tonal Tilt | -0.27 (negative is warmer, positive brighter) |
EQ preset to match the Harman 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 AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.9 dB | 0.70 |
| Peak | 3,452 Hz | +15.7 dB | 0.27 |
| Peak | 8,710 Hz | -13.6 dB | 1.31 |
| Peak | 170 Hz | -3.0 dB | 0.68 |
| Peak | 1,869 Hz | -16.5 dB | 0.71 |
| High shelf | 10,000 Hz | -5.8 dB | 0.70 |
| Peak | 9,052 Hz | +2.9 dB | 4.96 |
| Peak | 6,070 Hz | +1.4 dB | 4.06 |
| Peak | 4,262 Hz | -0.8 dB | 4.01 |
| Peak | 3,254 Hz | +0.7 dB | 4.39 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons