The Sony IER-Z1R ranks #302 out of 584 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Sony
Prices on this page were last checked October 12, 2026 at 4:13 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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#302 Sony IER-Z1R Discontinued eBay
Pros: Sony’s flagship hybrid IEM scores 74 on the Harman scale with a 2.14 dB spread and a warm tilt, with bass about 2 dB above target and smooth, inoffensive treble.
Cons: Discontinued. A 7.2 dB dip near 2.7 kHz softens vocal presence, and sub-bass is 1.9 dB short at 30 Hz. Its price is very high for a 74 Harman score.
| Released | 2018 (8 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.14 dB standard deviation |
| Driver Type | Hybrid |
| Drivers | 1 x 12mm dynamic + 1 x 5mm dynamic + 1 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 3Hz - 100kHz (Manufacturer specified) |
| Harman Preference Score | 74 (measured by oratory1990, via AutoEQ) |
| Impedance | 40 ohms |
| Sensitivity | 103 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) |
| Tonal Tilt | -0.40 (negative is warmer, positive brighter) |
| Weight | 0.1 lbs (26 g) |
EQ preset to match the Harman target
Set a preamp of -5.9 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 | +1.1 dB | 0.70 |
| Peak | 141 Hz | -3.0 dB | 0.53 |
| Peak | 2,630 Hz | +6.1 dB | 3.17 |
| Peak | 584 Hz | +1.2 dB | 0.71 |
| Peak | 1,447 Hz | -1.9 dB | 2.21 |
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 9,775 Hz | +1.7 dB | 1.16 |
| Peak | 3,704 Hz | -1.8 dB | 4.99 |
| Peak | 5,109 Hz | +2.7 dB | 5.93 |
| Peak | 5,999 Hz | -2.2 dB | 6.00 |
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