Short answer: the ThieAudio Monarch MKIII. It ranks #1 of 450 in-ear headphones by sound quality (rated 4.9/5); the Simgot EW100P ranks #23 (rated 4.8/5).
The case for the ThieAudio Monarch MKIII: A preference score of 91 in HypetheSonics’ measurement, with an exceptionally smooth 0.77 dB standard deviation from target. Watch for: The air band from 10 to 16 kHz sits about 5.7 dB above target with a 4.4 dB peak near 11.9 kHz, which can add a hint of glare on bright or sibilant recordings.
What the Simgot EW100P does well: In oratory1990’s measurement it earns a preference score of 83 with a deviation of only 1.49 dB, so its single 10mm dynamic driver tracks the Harman target unusually closely. Watch for: A 5.8 dB dip near 9.7 kHz and treble running about 2.4 dB under target between 6 and 10 kHz soften cymbals and string texture, while the 10 to 16 kHz air region is 3.6 dB hot.
Buy the ThieAudio Monarch MKIII. It is rated higher for sound quality than the Simgot EW100P.
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Specifications Side By Side
| ThieAudio Monarch MKIII | Simgot EW100P | |
|---|---|---|
| Price | $999.00 | - |
| Ranked | #1 of 450 in In-Ear Headphones | #23 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 91 (measured by HypetheSonics, via AutoEQ) | 83 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 0.77 dB standard deviation | 1.49 dB standard deviation |
| Tonal Tilt | -0.11 (negative is warmer, positive brighter) | -0.07 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.8 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (2 dynamic + 6 balanced armature + 2 electrostatic) | Dynamic |
| Drivers | 2 x 10mm dynamic + 6 x balanced armature + 2 x electrostatic | 1 x 10mm dynamic |
| Impedance | 18 ohms | 32 ohms |
| Sensitivity | 99 dB @ 1kHz | 122 dB |
| Frequency Response | 20Hz - 80kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
Related Headphone Comparisons
More worthwhile head-to-heads for ThieAudio Monarch MKIII:
- Moondrop Dark Saber vs ThieAudio Monarch MKIII
- ThieAudio Monarch MKII vs ThieAudio Monarch MKIII
- ThieAudio Monarch MKIII vs Symphonium Audio Helios
- ThieAudio Monarch MKIII vs ThieAudio Monarch MKIV
- Moondrop Dark Saber vs Simgot EW100P
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
ThieAudio Monarch MKIII: $999.00 Linsoul eBay
Pros: A preference score of 91 in HypetheSonics’ measurement, with an exceptionally smooth 0.77 dB standard deviation from target. Everything from 20 Hz to 10 kHz stays within about 1.1 dB of target, so bass, vocals and treble all sound balanced and true. It rates above the pricier Symphonium Audio Helios and well above the SoftEars RSV.
Cons: The air band from 10 to 16 kHz sits about 5.7 dB above target with a 4.4 dB peak near 11.9 kHz, which can add a hint of glare on bright or sibilant recordings. It is a wired in-ear with no built-in microphone, so it is not suited to calls on the go.
Full ThieAudio Monarch MKIII review and specifications →
| Released | 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 0.77 dB standard deviation |
| Driver Type | Hybrid (2 dynamic + 6 balanced armature + 2 electrostatic) |
| Drivers | 2 x 10mm dynamic + 6 x balanced armature + 2 x electrostatic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 80kHz (Manufacturer specified) |
| Harman Preference Score | 91 (measured by HypetheSonics, via AutoEQ) |
| Impedance | 18 ohms |
| Sensitivity | 99 dB @ 1kHz |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.8 dB at 30 Hz) |
| Tonal Tilt | -0.11 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -1.0 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 | -0.1 dB | 0.70 |
| Peak | 742 Hz | +1.1 dB | 1.13 |
| Peak | 130 Hz | -1.1 dB | 1.51 |
| Peak | 1,584 Hz | -0.6 dB | 1.19 |
| Peak | 3,281 Hz | +0.9 dB | 4.08 |
| High shelf | 10,000 Hz | -7.9 dB | 0.70 |
| Peak | 8,077 Hz | +1.8 dB | 1.48 |
| Peak | 5,639 Hz | -1.4 dB | 6.00 |
| Peak | 9,669 Hz | +1.1 dB | 4.55 |
| Peak | 60 Hz | +0.1 dB | 2.11 |
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Simgot EW100P AliExpress eBay
Pros: In oratory1990’s measurement it earns a preference score of 83 with a deviation of only 1.49 dB, so its single 10mm dynamic driver tracks the Harman target unusually closely. Bass and low mids sit within 1 dB of target and sub-bass is only 2.4 dB down at 30 Hz, giving kick drums real weight without boom. At 32 ohms and 122 dB sensitivity it reaches loud levels from a phone or a basic dongle.
Cons: A 5.8 dB dip near 9.7 kHz and treble running about 2.4 dB under target between 6 and 10 kHz soften cymbals and string texture, while the 10 to 16 kHz air region is 3.6 dB hot. It is wired only and has no microphone for calls.
Full Simgot EW100P review and specifications →
| Released | Apr 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.49 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 83 (measured by oratory1990, via AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 122 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.4 dB at 30 Hz) |
| Tonal Tilt | -0.07 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -3.0 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 | 162 Hz | -1.7 dB | 0.67 |
| Peak | 7,485 Hz | +3.1 dB | 1.75 |
| Peak | 634 Hz | +1.2 dB | 1.50 |
| Peak | 5,323 Hz | -1.9 dB | 5.08 |
| High shelf | 10,000 Hz | -5.2 dB | 0.70 |
| Peak | 9,319 Hz | +2.4 dB | 2.15 |
| Peak | 1,359 Hz | -0.7 dB | 1.98 |
| Peak | 3,552 Hz | -0.4 dB | 2.15 |
| Peak | 877 Hz | +0.5 dB | 3.25 |
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