ThieAudio Monarch MKIII vs Simgot EW100P

Last updated: October 11, 2026

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).

ThieAudio Monarch MKIII vs Simgot EW100P

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 FactorIn-earIn-ear
BackClosedClosed
Harman Preference Score91 (measured by HypetheSonics, via AutoEQ)83 (measured by oratory1990, via AutoEQ)
Deviation From Target0.77 dB standard deviation1.49 dB standard deviation
Tonal Tilt-0.11 (negative is warmer, positive brighter)-0.07 (negative is warmer, positive brighter)
Sub-bass ExtensionWithin 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)
ConnectionWiredWired
Driver TypeHybrid (2 dynamic + 6 balanced armature + 2 electrostatic)Dynamic
Drivers2 x 10mm dynamic + 6 x balanced armature + 2 x electrostatic1 x 10mm dynamic
Impedance18 ohms32 ohms
Sensitivity99 dB @ 1kHz122 dB
Frequency Response20Hz - 80kHz (Manufacturer specified)20Hz - 20kHz (Manufacturer specified)
Built-in MicrophoneNo-

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The Two Headphones In Full

ThieAudio Monarch MKIII: $999.00 Linsoul eBay

ThieAudio Monarch MKIII ranking card

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.

Released2023 (3 years ago)
BackClosed
Built-in MicrophoneNo
ConnectionWired
Deviation From Target0.77 dB standard deviation
Driver TypeHybrid (2 dynamic + 6 balanced armature + 2 electrostatic)
Drivers2 x 10mm dynamic + 6 x balanced armature + 2 x electrostatic
Form FactorIn-ear
Frequency Response20Hz - 80kHz (Manufacturer specified)
Harman Preference Score91 (measured by HypetheSonics, via AutoEQ)
Impedance18 ohms
Sensitivity99 dB @ 1kHz
Sub-bass ExtensionWithin 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.

FilterFrequencyGainQ
Low shelf105 Hz-0.1 dB0.70
Peak742 Hz+1.1 dB1.13
Peak130 Hz-1.1 dB1.51
Peak1,584 Hz-0.6 dB1.19
Peak3,281 Hz+0.9 dB4.08
High shelf10,000 Hz-7.9 dB0.70
Peak8,077 Hz+1.8 dB1.48
Peak5,639 Hz-1.4 dB6.00
Peak9,669 Hz+1.1 dB4.55
Peak60 Hz+0.1 dB2.11

Simgot EW100P AliExpress eBay

Simgot EW100P ranking card

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.

ReleasedApr 2023 (3 years ago)
BackClosed
ConnectionWired
Deviation From Target1.49 dB standard deviation
Driver TypeDynamic
Drivers1 x 10mm dynamic
Form FactorIn-ear
Frequency Response20Hz - 20kHz (Manufacturer specified)
Harman Preference Score83 (measured by oratory1990, via AutoEQ)
Impedance32 ohms
Sensitivity122 dB
Sub-bass ExtensionWithin 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.

FilterFrequencyGainQ
Low shelf105 Hz+1.5 dB0.70
Peak162 Hz-1.7 dB0.67
Peak7,485 Hz+3.1 dB1.75
Peak634 Hz+1.2 dB1.50
Peak5,323 Hz-1.9 dB5.08
High shelf10,000 Hz-5.2 dB0.70
Peak9,319 Hz+2.4 dB2.15
Peak1,359 Hz-0.7 dB1.98
Peak3,552 Hz-0.4 dB2.15
Peak877 Hz+0.5 dB3.25