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Etymotic ER4SR vs 7Hz Timeless

Side-by-side comparison — scores, specs and which one fits your setup.

Etymotic ER4SR
8.2
/ 10
IEMHigh end
HIGHER SCORE
7Hz Timeless
8.6
/ 10
IEMHigh end

Specs comparison

8.2/10
SCORE
8.6/10
75Ω
IMPEDANCE
14Ω
99dB
SENSITIVITY
104dB
No
NEEDS AMP
No

Analysis

The Etymotic ER4SR scores 8.2/10 with 75Ω impedance and 99dB sensitivity. At 75Ω, it drives well from most phones without an external amp.

The 7Hz Timeless scores 8.6/10 with 14Ω impedance and 104dB sensitivity. At 14Ω, it can be driven directly without extra hardware.

Based on our scoring, the 7Hz Timeless scores higher overall. However, the right choice depends on your full audio chain — use our analyzer to see which fits your actual setup.

Own one of these headphones?

A high headphone score doesn't mean your audio sounds great. Your DAC, amp or source might be the real bottleneck.

Analyze my setup →Etymotic ER4SR details →7Hz Timeless details →

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