Koss: Porta Pro Utility Headphones — frequency response Measured: Neutral
This is the actual measured response of the Koss: Porta Pro Utility Headphones by Koss (source: AutoEq · Headphone.com Legacy). Compare it against the Harman target, listen to the tuning on test signals below, then check prices (from ₹4,752 at 1 store).
Signature: Neutral
Bass vs mids: -0.2 dB
Treble vs mids: +2.2 dB
Tuning vs Harman: 2.7 dB avg dev (moderately tuned)
Measured by: AutoEq · Headphone.com Legacy
On file since 2026-09-21
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Same signal, two ways: hear it without this tuning, then with it -
Sounds like
Curve-shape similarity from the same measurements - open any two in the compare tool to overlay and hear them side by side.
Audeze LCD-5 Planar Magnetic Headphone - [RED] 1.5m Balanced XLR Termination
Measured: Neutral
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