Sennheiser firmware — In-ear monitor systems
Firmware versions tracked by Above the Fader. Filed under In-ear monitor systems.
| Model | Current stable | Released | Verified | Notes |
|---|---|---|---|---|
| Spectera (Base Station) | 1.4.1 | 2026-07-15 | 2026-08-02 | Replaces the non-existent 'Digital 6000 IEM' entry. Digital 6000 is a receive-only mic system with no IEM counterpart; Spectera is Sennheiser's bidirectional wideband platform whose SEK bodypack carries the IEM downlink. Spectera Dante firmware is a separate v1.2.0. |
| 2000 IEM Series | 1.8.1 | pending | 2026-08-02 | One ZIP shared across Series 2000 and Series 2000 IEM. RF path is analog but the SR 2000 / SR 2050 transmitters are networked and updatable via WSM. |
| EW IEM G4 | 1.2.0.1 | pending | 2026-08-02 | One package covers the whole ew G4 series. Applies to the SR IEM G4 rack transmitter; the EK IEM G4 bodypack has no user-updatable firmware. |
Sennheiser support / downloads
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