Blunami Diesel ALCO 8-Function Plug & Play Sound Decoder (TUC885615)

Blunami 8-Function Plug-In Diesel Sound Decoder for ALCO locomotives is a universal factory-board replacement that adds authentic diesel sound and control to a broad range of Atlas, Athearn, and InterMountain diesel models. Suitable for models from HO to S scale, it supports DC, DCC, and wireless operation and can be controlled easily with the Blunami App.

Dynamic Digital Exhaust automatically adjusts exhaust notes to match the motor’s load, delivering realistic sound as the locomotive climbs grades or cruises on flat track. Calibration and fine-tuning are handled through the Blunami App. This plug‑and‑play decoder provides eight-function sound and offers compatibility across multiple scales and manufacturers, making an upgrade straightforward for DC, DCC, or wireless operation.