Sony
Sony IER-Z1R
$1999.99
Released 2018
Best In Ear Monitors · head-to-head
Sony IER-Z1R vs 7Hz Timeless II
A sourced, side-by-side comparison. 7Hz Timeless II is cheaper at $229. Every spec and price links to its source.
7Hz
7Hz Timeless II
$229Cheaper
Released 2025
Which is better: the Sony IER-Z1R or 7Hz Timeless II?
On the specs we track, they're closely matched. The 7Hz Timeless II is the cheaper at $229.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Sony IER-Z1R | 7Hz Timeless II |
|---|---|---|
| US price | $1999.99 | $229 |
| Brand | Sony | 7Hz |
| Released | 2018 | 2025 |
| Driver type | hybrid | planar-magnetic |
| Driver config | — | single planar |
| Impedance ohms | 40 | 15.2 |
| Sensitivity db mw | 103 | — |
| Frequency response (Hz) | 3-100000 | — |
| Connector type | mmcx | 2pin-0.78mm |
| Cable detachable | Yes | Yes |
| Plug termination | 3.5mm | modular |
| Shell material | zirconium-alloy | — |
| Weight grams | 26 | 5 |
Sources — Sony IER-Z1R: sony.co.in (verified 2026-07-11). 7Hz Timeless II: linsoul.com (verified 2026-07-11).
What's the difference between the Sony IER-Z1R and 7Hz Timeless II?
Where the two actually differ on the specs we track (5 of 10). Matching specs are omitted.
- Driver type: Sony IER-Z1R hybrid vs 7Hz Timeless II planar-magnetic
- Impedance ohms: Sony IER-Z1R 40 vs 7Hz Timeless II 15.2
- Connector type: Sony IER-Z1R mmcx vs 7Hz Timeless II 2pin-0.78mm
- Plug termination: Sony IER-Z1R 3.5mm vs 7Hz Timeless II modular
- Weight grams: Sony IER-Z1R 26 vs 7Hz Timeless II 5