7Hz Salnotes Zero Review: Ranked #4 of 68

The 7Hz Salnotes Zero ranks #4 out of 68 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.

Brand: 7Hz

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#4 7Hz Salnotes Zero: $22.99 Discontinued Amazon eBay

Newer model: the 7Hz x Crinacle Zero 2, ranked lower, rated 3.9/5, released Nov 2023. See every 7Hz Zero generation.

Pros: A Harman score of 84 from a single 10 mm dynamic driver at a bargain price is remarkable. Bass and mids sit within about 0.3 dB of the target, so vocals and instruments are balanced naturally with a 1.31 dB deviation. It runs from a phone without difficulty at 32 ohms and 108 dB per volt. It beats the 7Hz x Crinacle Zero 2 on rating at a similar cost.

Cons: Presence and treble run about 2.1 to 2.2 dB under target, and a 6.2 dB dip near 10 kHz leaves cymbals and breath detail muted. Sub-bass is about 1.5 dB light, so the deepest rumble in electronic music is understated. The sensitivity is lower than many rivals, so it needs a bit more volume headroom from weak sources. Discontinued.

Released	Jul 2022 (4 years ago)
Back	Closed
Connection	Wired
Deviation From Target	1.31 dB standard deviation
Driver Type	Dynamic
Drivers	1 x 10mm dynamic
Form Factor	In-ear
Frequency Response	10Hz - 20kHz (Manufacturer specified)
Harman Preference Score	84 (measured by oratory1990, via AutoEQ)
Impedance	32 ohms
Sensitivity	108 dB SPL/V
Tonal Tilt	-0.16 (negative is warmer, positive brighter)

EQ preset to match the Harman target

Set a preamp of -2.5 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	-0.4 dB	0.70
Peak	7,148 Hz	+2.5 dB	1.39
Peak	186 Hz	-1.3 dB	1.35
Peak	65 Hz	+1.7 dB	1.11
Peak	1,677 Hz	-1.1 dB	1.82
High shelf	10,000 Hz	-1.3 dB	0.70
Peak	857 Hz	+0.9 dB	1.64
Peak	9,824 Hz	+0.9 dB	1.98
Peak	3,316 Hz	-0.6 dB	2.50
Peak	1,261 Hz	-0.7 dB	3.34

• Reviews, Comparisons and Sound Samples
  • AutoEQ results for the 7Hz Salnotes Zero (oratory1990 measurement)

Head-to-Head Comparisons

3 comparisons

• 7Hz Salnotes Zero vs Truthear Gate
• 7Hz Salnotes Zero vs Truthear x Crinacle Zero RED
• 7Hz Salnotes Zero vs KZ ZSN Pro X

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