For converting Märklin / Trix H0 locomotives with built-in high-performance motors or other DC motors. The märklin SoundDecoder3 has a soldered-on cable harness with an 8-pin NEM interface plug for retrofitting many locomotives with a corresponding NEM interface and locomotives with a lack of space.
The märklin SoundDecoder3 supports the digital formats mfx, MM1, MM2 and DCC.
Preset sound of a steam locomotive.