Sennheiser's driver engineering at its finest. The 7mm single dynamic achieves detail retrieval rivalling multi-driver hybrids. Post-correction, footstep texture — concrete vs carpet vs metal — is among the clearest of any IEM. The top-tier pick for serious IEM gamers.
These filters are applied first — they flatten Sennheiser IE 300's frequency response to neutral. A game-specific footstep boost layer is then added on top. Both are baked into the downloaded config.
| # | Type | Frequency | Gain | Q |
|---|---|---|---|---|
| 1 | LSC | 105 Hz | -4.3 dB | 0.70 |
| 2 | PK | 134 Hz | -1.1 dB | 1.94 |
| 3 | PK | 250 Hz | -2.5 dB | 1.31 |
| 4 | PK | 393 Hz | +2.0 dB | 1.19 |
| 5 | PK | 2278 Hz | +1.4 dB | 4.58 |
| 6 | PK | 3111 Hz | +7.0 dB | 2.23 |
| 7 | PK | 4046 Hz | +2.9 dB | 5.61 |
| 8 | PK | 6970 Hz | -0.9 dB | 5.58 |
| 9 | PK | 10000 Hz | -5.5 dB | 0.95 |
| 10 | HSC | 10000 Hz | -1.3 dB | 0.70 |
Headphone correction + game-optimised footstep boost, combined into a single Equalizer APO config file. Enter your email, pick your game, download — done.
Requires Equalizer APO on Windows. Free to install.
Each link below is a dedicated page with the combined IE 300 correction + game footstep profile — filter table, setup instructions, and direct download.
General game pages: Counter-Strike 2 →Valorant →Apex Legends →