HIFIMAN HE400se vs Sony MDR-7506

Short answer: the HIFIMAN HE400se. It ranks #18 of 216 over-ear headphones by sound quality, rated 4.3/5, at $109; the Sony MDR-7506 ranks #56, rated 4.1/5, and costs $129.99, so there is not much of a tradeoff to weigh.

The case for the HIFIMAN HE400se: A preference score of 89 and a neutral tilt make this an accurate sounding planar for the money. The catch: Sub-bass is about 5 dB light and bass from 60 to 200 Hz is about 1 dB under target, so low end impact is limited.

Why pick the Sony MDR-7506: A preference score of 83 with a deviation of only 1.7 dB from the Harman target in oratory1990’s measurement is excellent for a closed studio headphone. The tradeoff: Presence and treble run about 3.5 dB hot, with a peak of 6 dB near 4.5 kHz, which makes vocals forward and cymbals or sibilance sharp at higher volumes.

Buy the HIFIMAN HE400se. It is rated higher for sound quality than the Sony MDR-7506 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

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• HIFIMAN HE400se vs FiiO JT7
• HIFIMAN HE400se vs Audio-Technica ATH-M40x
• FiiO JT7 vs Sony MDR-7506
• Sony MDR-7506 vs Beyerdynamic DT 990 Pro
• Sony MDR-7506 vs Beyerdynamic DT 770 Pro

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 HE400se: $109.00 Amazon eBay

Pros: A preference score of 89 and a neutral tilt make this an accurate sounding planar for the money. Treble is within a fraction of a dB of target and the air band is only 1 dB high, so the top end is smooth and free of sharp peaks, with the largest at about 2.4 dB near 11.9 kHz. It matches the rating of the Beyerdynamic DT 880 at a lower price, with a modest 396 g weight.

Cons: Sub-bass is about 5 dB light and bass from 60 to 200 Hz is about 1 dB under target, so low end impact is limited. The low mids are about 1.6 dB elevated while a 4.8 dB dip near 2 kHz and a 2 dB upper mid shortfall can push vocals slightly back. At 91 dB/mW sensitivity it benefits from a headphone amp, and the open back leaks sound and provides no isolation. See headphone amps and DACs with enough power to drive it.

Full HIFIMAN HE400se review and specifications →

Released	Mar 2021 (5 years ago)
Back	Open
Connection	Wired
Deviation From Target	1.98 dB standard deviation
Driver Type	Planar magnetic
Drivers	1 x planar magnetic
Form Factor	Over-ear
Frequency Response	20Hz - 20kHz (Manufacturer specified)
Harman Preference Score	89 (measured by oratory1990, via AutoEQ)
Sensitivity	91 dB/mW
Sub-bass Extension	Falls 6 dB below target at 45 Hz (-7.3 dB at 30 Hz)
Tonal Tilt	+0.05 (negative is warmer, positive brighter)
Weight	0.9 lbs (396 g)

EQ preset to match the Harman target

Set a preamp of -6.0 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	+6.7 dB	0.70
Peak	1,968 Hz	+5.1 dB	2.37
Peak	861 Hz	-2.3 dB	1.86
Peak	101 Hz	-2.4 dB	0.32
Peak	1,619 Hz	+1.1 dB	3.53
High shelf	10,000 Hz	-2.6 dB	0.70
Peak	138 Hz	+0.7 dB	1.98
Peak	64 Hz	-0.7 dB	1.95
Peak	251 Hz	-0.4 dB	2.33
Peak	29 Hz	+0.5 dB	2.63

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the HIFIMAN HE400se (oratory1990 measurement)
• Head-to-Head Comparisons
  • HIFIMAN HE400se vs FiiO JT7
  • HIFIMAN HE400se vs Audio-Technica ATH-M40x

Sony MDR-7506: $129.99 Amazon eBay

Pros: A preference score of 83 with a deviation of only 1.7 dB from the Harman target in oratory1990’s measurement is excellent for a closed studio headphone. Bass and low mids sit within about 1 dB of target, so vocals and instruments sound natural and uncolored. At 260 g with a 106 dB/mW sensitivity, it plays loud straight from a phone or laptop without an amp.

Cons: Presence and treble run about 3.5 dB hot, with a peak of 6 dB near 4.5 kHz, which makes vocals forward and cymbals or sibilance sharp at higher volumes. Air above 10 kHz is about 2.6 dB low, and the wired-only design has no microphone.

Full Sony MDR-7506 review and specifications →

Back	Closed
Built-in Microphone	No
Connection	Wired
Deviation From Target	1.70 dB standard deviation
Driver Type	Dynamic
Drivers	1 x 40mm dynamic
Form Factor	Over-ear
Frequency Response	10Hz - 20kHz (Manufacturer specified)
Harman Preference Score	83 (measured by oratory1990, via AutoEQ)
Sensitivity	106 dB/mW
Sub-bass Extension	Within 6 dB of target down to 20 Hz (-1.5 dB at 30 Hz)
Tonal Tilt	+0.64 (negative is warmer, positive brighter)
Weight	0.6 lbs (260 g)

EQ preset to match the Harman target

Set a preamp of -5.8 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	+10.3 dB	0.70
Peak	5,435 Hz	-3.8 dB	0.90
Peak	847 Hz	+1.9 dB	0.70
Peak	230 Hz	+3.7 dB	2.08
Peak	48 Hz	-9.5 dB	0.52
High shelf	10,000 Hz	+3.8 dB	0.70
Peak	7,530 Hz	-1.4 dB	3.26
Peak	2,916 Hz	-1.9 dB	5.57
Peak	3,748 Hz	+2.6 dB	5.91
Peak	4,456 Hz	-1.6 dB	6.00

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Sony MDR-7506 (oratory1990 measurement)
• Head-to-Head Comparisons
  • Sony MDR-7506 vs Beyerdynamic DT 770 Pro
  • Sony MDR-7506 vs Beyerdynamic DT 990 Pro
  • Sony MDR-7506 vs FiiO JT7