EPZ P50 vs Fatfreq Hayabusa

Short answer: a tie on sound quality. Both are rated 4.2/5 (#175 and #188 of 450 in-ear headphones), so choose on features and fit.

What the Fatfreq Hayabusa does well: A preference score of 76 in crinacle’s measurement places its tuning reasonably close to the Harman target most listeners prefer. The catch: The response is uneven, at 1.94 dB standard deviation from target, so some frequency regions stand out or fall back.

Buy the EPZ P50 or the Fatfreq Hayabusa on features: they are rated the same for sound quality at close to the same price.

Looking for alternatives? See the complete Headphones rankings.

Specifications Side By Side

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The Two Headphones In Full

EPZ P50: $189.99 Amazon eBay

Full EPZ P50 review and specifications →

Back	Closed
Connection	Wired
Deviation From Target	1.56 dB standard deviation
Driver Type	Hybrid (1 dynamic + 2 balanced armature + 2 planar)
Drivers	1 x 10mm dynamic + 2 x balanced armature + 2 x planar
Form Factor	In-ear
Frequency Response	20Hz - 40kHz (Manufacturer specified)
Harman Preference Score	77 (median of 28 squig.link measurements, calibrated to AutoEQ)
Impedance	20 ohms
Sensitivity	106 dB
Sub-bass Extension	Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz)
Tonal Tilt	-0.34 (negative is warmer, positive brighter)

• Reviews, Comparisons and Sound Samples
  • Frequency response measurements of the EPZ P50 by 28 squig.link measurers
• Head-to-Head Comparisons
  • EPZ P50 vs Melody Wings Venus
  • EPZ P50 vs TANGZU Zetian Wu
  • EPZ P50 vs Samsung Galaxy Buds Pro
  • EPZ P50 vs 7Hz Timeless
  • EPZ P50 vs Samsung Galaxy Buds3 Pro

Fatfreq Hayabusa FATfreq eBay

Pros: A preference score of 76 in crinacle’s measurement places its tuning reasonably close to the Harman target most listeners prefer. As a closed, wired in-ear it isolates from outside noise.

Cons: The response is uneven, at 1.94 dB standard deviation from target, so some frequency regions stand out or fall back. It is a wired design with no wireless option.

Full Fatfreq Hayabusa review and specifications →

Back	Closed
Connection	Wired
Deviation From Target	1.94 dB standard deviation
Form Factor	In-ear
Harman Preference Score	76 (measured by crinacle, via AutoEQ)
Tonal Tilt	+0.29 (negative is warmer, positive brighter)

EQ preset to match the Harman target

Set a preamp of -2.8 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	+2.6 dB	0.70
Peak	188 Hz	-1.4 dB	0.82
Peak	5,241 Hz	+3.0 dB	3.70
Peak	9,076 Hz	+2.0 dB	2.95
Peak	69 Hz	+0.6 dB	1.28
High shelf	10,000 Hz	-4.2 dB	0.70
Peak	1,470 Hz	-2.0 dB	2.41
Peak	2,478 Hz	+2.4 dB	2.85
Peak	3,671 Hz	-1.6 dB	3.87
Peak	855 Hz	+1.0 dB	1.93

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the Fatfreq Hayabusa (crinacle measurement)
• Head-to-Head Comparisons
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