SoundTraxx Tsunami2 Electric 21-Pin DCC Sound Decoder 8-Function – 886803

The SoundTraxx Tsunami2 Electric TSU-886803is a premium21-pin (NEM660) DCC sound decoderbuilt specifically forelectric locomotivessuch as electrics, interurbans, and other overhead-wire prototypes. It combines SoundTraxx Tsunami2 sound quality, smooth motor control, and8 function outputsfor flexible lighting and onboard effects.

Realistic Tsunami2 Electric Sound

This decoder is part of theTsunami2 Electricseries and is designed to reproduce the distinct audio you expect from electric power, including appropriate electric locomotive sound effects and operating behaviors. If you are modeling electric prototypes and want sound that matches the equipment, the TSU-886803 is the right fit.

21-Pin Plug-and-Play Installation

The TSU-886803 uses a21-pin NEM660interface for direct installation into compatible locomotives equipped with a factory 21-pin socket. This makes it a clean upgrade path for many modern DCC-ready models without hard-wiring.

8-Function Lighting & Effects Control

With8 function outputs, you can control headlight and rear light functions plus additional lighting effects such as cab lights, marker lights, number boards, beacon effects, and other custom lighting behaviors (depending on your locomotive and motherboard support). Functions are fully configurable using CV programming.

Key Features

• Tsunami2 Electricsound decoder for electric locomotive prototypes
• 21-pin (NEM660)plug interface
• 8 function outputsfor lighting and effects
• Advanced motor control for smooth starts, low-speed performance, and consistent operation
• Works with mostNMRA-compliant DCCsystems

Speaker Required

A compatibleDCC speakeris required for sound output and is sold separately. For best results, choose a quality speaker and enclosure that fits your locomotive’s available space.

Recommended For

• Electric locomotives (including electrics and interurbans)
• Models equipped with a21-pin decoder socket
• Installations needing additional lighting outputs beyond basic headlight control

Frequently Asked Questions (FAQ)

Is the TSU-886803 a steam or diesel sound decoder?

No. TheTSU-886803 is a Tsunami2 Electric sound decoderintended for electric locomotive prototypes.

What does 21-pin mean?

This decoder uses a21-pin (NEM660)plug interface designed to fit locomotives with a factory-installed 21-pin socket/motherboard.

Does this decoder include a speaker?

No. A speaker is required for sound output and must be purchased separately.

Will it work with Digitrax, NCE, and other DCC systems?

Yes. The TSU-886803 isNMRA-compliantand works with most major DCC systems.

What are 8 functions used for?

Function outputs can control headlights and additional lighting/effects such as cab lights, marker lights, number boards, strobes, beacons, and more (depending on your model’s wiring and motherboard support).

Is this decoder mainly for HO scale?

It is commonly used inHO scalemodels that provide a 21-pin socket, but the correct choice depends on your locomotive’s decoder interface and available space.