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 64 Audio Volur ranks #391, rated 3.0/5, and costs $2,499, so there is little reason to consider the other one.
The case for the HIFIMAN RE2000 Pro: 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.
Why pick the 64 Audio Volur: Two 9mm dynamic drivers deliver about 3 to 4 dB of extra sub-bass and bass in HypetheSonics’ measurement, still 2 dB above target at 30 Hz, so bass-heavy music has real depth and slam. The catch: A 4.6 dB dip near 3.4 kHz and a 2.4 dB shortfall across 3 to 6 kHz push vocals back behind the bass.
Buy the HIFIMAN RE2000 Pro. It is rated higher for sound quality than the 64 Audio Volur and costs less, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| HIFIMAN RE2000 Pro | 64 Audio Volur | |
|---|---|---|
| Price | $2,000.00 | $2,499.00 |
| Ranked | #385 of 450 in In-Ear Headphones | #391 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 63 (measured by crinacle, via AutoEQ) | 62 (measured by HypetheSonics, via AutoEQ) |
| Deviation From Target | 2.90 dB standard deviation | 2.56 dB standard deviation |
| Tonal Tilt | -0.49 (negative is warmer, positive brighter) | -1.19 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (2 dynamic + 8 balanced armature) |
| Impedance | 60 ohms | 6.3 ohms |
| Sensitivity | 103 dB | 103 dB/mW |
| Frequency Response | 5Hz - 20kHz (Manufacturer specified) | 5Hz - 22kHz (Manufacturer specified) |
| Built-in Microphone | No | No |
| Sub-bass Extension | - | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) |
| Drivers | - | 2 x 9mm dynamic + 8 x balanced armature |
Related Headphone Comparisons
How HIFIMAN RE2000 Pro compares with other leading options:
- 64 Audio A12t vs HIFIMAN RE2000 Pro
- SoftEars Cerberus vs HIFIMAN RE2000 Pro
- 64 Audio U12t vs HIFIMAN RE2000 Pro
- 64 Audio U18S vs HIFIMAN RE2000 Pro
- HIFIMAN RE2000 Pro vs Shure KSE1500
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.
As an eBay Partner, we may be compensated if you make a purchase.
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
64 Audio Volur: $2,499.00 64 Audio eBay
Pros: Two 9mm dynamic drivers deliver about 3 to 4 dB of extra sub-bass and bass in HypetheSonics’ measurement, still 2 dB above target at 30 Hz, so bass-heavy music has real depth and slam. Air above 10 kHz rises about 5.5 dB for shimmer on cymbals. The treble avoids sharp peaks, topping out at 3.8 dB near 11.9 kHz, so it stays easy to listen to at volume. At 103 dB/mW a phone drives it adequately.
Cons: A 4.6 dB dip near 3.4 kHz and a 2.4 dB shortfall across 3 to 6 kHz push vocals back behind the bass. A 1.9 dB lift in the lower mids adds thickness that can muddy dense mixes. The 64 Audio U12t and Fir Audio e12 both rate higher for less money.
Full 64 Audio Volur review and specifications →
| Released | Sep 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.56 dB standard deviation |
| Driver Type | Hybrid (2 dynamic + 8 balanced armature) |
| Drivers | 2 x 9mm dynamic + 8 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 22kHz (Manufacturer specified) |
| Harman Preference Score | 62 (measured by HypetheSonics, via AutoEQ) |
| Impedance | 6.3 ohms |
| Sensitivity | 103 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) |
| Tonal Tilt | -1.19 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.4 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 | -3.0 dB | 0.70 |
| Peak | 193 Hz | -3.4 dB | 0.86 |
| Peak | 3,229 Hz | +4.2 dB | 3.02 |
| Peak | 883 Hz | +2.0 dB | 1.56 |
| Peak | 8,213 Hz | +2.8 dB | 2.15 |
| High shelf | 10,000 Hz | -11.7 dB | 0.70 |
| Peak | 9,744 Hz | +5.1 dB | 1.56 |
| Peak | 69 Hz | +0.7 dB | 1.81 |
| Peak | 2,041 Hz | -0.8 dB | 4.65 |
| Peak | 119 Hz | -0.5 dB | 2.33 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons