Sound Decoders

SDH164D 1 Amp HO Scale Mobile Sound/Motor/Function Decoder with SoundFX

Wired Mobile Decoder with SoundFX can be installed in almost any HO Locomotive


SDH164K1A 1 Amp HO Scale Board Replacement Mobile/Sound/Function Decoder for Kato AC4400 Locos

Board replacement decoder for Kato AC4400 HO Locomotives With Sound/Motor/Function Control


SDH164K1B 1 Amp HO Scale Board Replacement Mobile/Sound/Function Decoder for Kato SD38-2 locos

Replaces SDH104K1B & SDH104K1B C decoders (no FN04K1 needed)


SDH164K1C 1 Amp HO Scale Board Replacement Mobile/Sound/Function Decoder for Kato F40PH HO Locos

Replaces SDH104K1C & SDH104K1C C decoders (no FN04K1 needed)


SDN144A0 1 Amp N Scale Board Replacement Mobile/Sound/Function Decoder for Atlas N Scale GP38 and similar locos

Board replacement decoder for N Scale Atlas GP38 diesels


SDN144A1 1 Amp N Scale Board Replacement Sound/Motor/Function Decoder for Atlas SD50/60

Board replacement decoder for N Scale Atlas SD50/60 diesels


SDN144K0A 1 Amp N Scale Board Replacement Mobile Decoder for Kato P42, E8, PA1, F40 and similar locos

Board replacement decoder for N Scale Kato P42, E8, PA1, F40 and similar locos


SDN144K1E 1 Amp N Scale Mobile Decoder for Kato SD40-2 and similar locos

Board replacement decoder for N Scale Kato SD40-2 and similar locos


SDN144PS 1 Amp N Scale Mobile Sound/Motor/Function Decoder with SoundFX

Plug N Play Mobile Sound/Motor/Function Decoder with SoundFX


SFX004 Soundbug Sound Decoder for DH165xx decoders and others

Digitrax Soundbug ready decoders give you the flexibility to choose when to add sound to your locomotives. Originally produced as a plug n'play add on for DH165xx series board replacement decoders, Sound Bugs can be used to add sound to any decoder. Decoders that do not have sound bug sockets, will have to be wired.