---
product_id: 239103242
title: "SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder Converter,Optical SPDIF, Coaxial to 5.1CH 2.1CH Analog Audio (6RCA Output) for Old AV Receiver"
brand: "southsky"
price: "B/.143"
currency: PAB
in_stock: true
reviews_count: 13
category: "Southsky"
url: https://www.desertcart.com.pa/products/239103242-southsky-5-1-2-1-audio-rush-digital-sound-decoder
store_origin: PA
region: Panama
---

# LED input & status indicators One-key input & mode switching 5.1 & 2.1 channel analog output SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder Converter,Optical SPDIF, Coaxial to 5.1CH 2.1CH Analog Audio (6RCA Output) for Old AV Receiver

**Brand:** southsky
**Price:** B/.143
**Availability:** ✅ In Stock

## Summary

> 🎧 Upgrade your vintage AV gear to modern surround sound bliss!

## Quick Answers

- **What is this?** SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder Converter,Optical SPDIF, Coaxial to 5.1CH 2.1CH Analog Audio (6RCA Output) for Old AV Receiver by southsky
- **How much does it cost?** B/.143 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/239103242-southsky-5-1-2-1-audio-rush-digital-sound-decoder)

## Best For

- southsky enthusiasts

## Why This Product

- Trusted southsky brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Signal Memory:** Automatically remembers your last input after power cycles—no more fumbling with settings.
- • **Clear LED Indicators:** Instantly identify active inputs and operational status with intuitive LED feedback.
- • **Multi-Input Versatility:** Supports dual optical SPDIF, coaxial, and 3.5mm aux inputs to connect all your legacy and modern devices.
- • **Compact & Portable Design:** Sleek black finish and mini size fit perfectly in any home theater setup or professional environment.
- • **Seamless 5.1 & 2.1 Surround Sound:** Effortlessly switch between immersive 5.1 channel surround and crisp 2.1 stereo modes with a single button.

## Overview

The SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder Converter transforms digital optical and coaxial signals into rich 5.1 or 2.1 channel analog audio via 6 RCA outputs. Designed for older AV receivers, it supports Dolby, DTS, and LPCM decoding, features multiple input options, one-key switching, signal memory, and LED indicators, making it the perfect bridge between legacy audio equipment and today’s digital sources.

## Description

SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder Converter,Optical SPDIF, Coaxial to 5.1CH 2.1CH Analog Audio (6RCA Output) for Old AV Receiver: desertcart.com: Industrial & Scientific

Review: Decodes surround channels 5.1 with switchable 5.1 or 2.1 output - The SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder works great for connecting my stereo Sennheiser headphones. I'm taking 5.1 surround sound from a gofanco extractor and decoding to analog RCA outs. This unit has a switch that combines the 5 surround channels making left front and right front mixed stereo outputs plus subwoofer out. I am finally able to keep surround sound playback in the room and provide headphone audio for my wife. Other splitters I have tried always switched my Receiver from 5.1 surround encoding to PCM stereo when I connected to use the left and right RCA outputs. This unit connected to a gofanco HDMI to HDMI extractor set to 5.1 surround makes my Receiver stay in surround mode so all my devices ( Firetv, Blu-ray player & Dish TV) play out surround sound.
Review: The little box that could - This is exactly what I needed to convert a smart TV (with only SPDIF) to use a Sony receiver (with no SPDIF input) and surround system I was given. Works exactly how I wanted it to and works flawlessly. It is true that the sound depends on the source, so if the source says 5.1 and it turns out to be something else, you won't get exactly 5.1 surround, but you will still get sound. This has worked for everything I cared about on that smart TV and finally allowed me to use those beautiful speakers built into my walls that came with the house.

## Features

- 【5.1CH &2.1CH DAC for Old AV Receiver】Convert digital optical(Toslink,SPDIF),Coaxial signals to 6 RCA /5.1 channel analog sound surround audio and 2.1 CH (FL,FR,SW) stereo, including LPCM,support Dolby, DTS /AC-3 audio decoder conversion for Home Theater.One key switch 5.1ch and 2.1ch mode;
- 【Multi Interfaces & One Key Switch】2 SPDIF (optical fiber / Toslink) input ports, 1 coaxial and 3.5mm aux input; Output: 6 RCA (FL, FR, SL, SR, CEN, SW); One key to switch the input signal channel.
- 【Signal Input Memory Function】Input signals automatically recovery after restart, no need to switch the button to choose the input signals again or every time,very smart;
- 【LED Indicators】 LED indicators of input signals and operating status,let you easily choose and identify the right input channel;eg,when input is SPDIF-2 port, switch the input button till LED D2 light will be always on(when input is 3.5mm aux port, switch the input button till all LED light off)
- 【Wide Range of Applications】Well surface treatment, mini size,portable,black color; Need to connect to an AV amplifier or receiver to power up your 6 speakers or soundbar and enjoy the shock effect of sound surround.widely used at home, school, square, concert hall, movie theater and other public places, you can enjoy the perfect shock stereo sound surround effect of DTS or Dolby. Compatible with HDTV, Blu-ray DVD, DVD, PlayStation Game Console, PS2, PS3, PS4, Xbox360, DM500S, DM800HD etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08KD9NVXY |
| Best Sellers Rank | #89,321 in Electronics ( See Top 100 in Electronics ) #178 in Digital-Analog Converters #214 in Signal Converters |
| Brand | SOUTHSKY |
| Date First Available | September 1, 2014 |
| Interface Type | Coaxial |
| Item Weight | 7.8 ounces |
| Item model number | US42 |
| Manufacturer | SOUTHSKY |
| Material | fiber |
| Maximum Supply Voltage | 5 Volts |
| Minimum Supply Voltage | 5 Volts (DC) |
| Mounting Type | Coaxial |
| Number of Channels | 6 |
| Number of Pins | 10 |
| Product Dimensions | 4.25"L x 3.46"W |
| UPC | 788424416316 |

## Product Details

- **Brand:** SOUTHSKY
- **Maximum Supply Voltage:** 5 Volts
- **Minimum Supply Voltage:** 5 Volts (DC)
- **Mounting Type:** Coaxial
- **Number of Pins:** 10

## Images

![SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder Converter,Optical SPDIF, Coaxial to 5.1CH 2.1CH Analog Audio (6RCA Output) for Old AV Receiver - Image 1](https://m.media-amazon.com/images/I/71eKlcWNouL.jpg)

## Questions & Answers

**Q: will this work with a roku ultra that streams dolby digital plus?**
A: it doesn't support dolby digital plus what is 7.1Ch

**Q: is there a 3.5 plug version?**
A: Yes that would be the Aux port

**Q: Is the subwoofer channel full range or is there a crossover on the output?**
A: The unit outputs subwoofer only frequencies. However, the output is low in volume. With mine i use preamps on all the outputs and the on to the amplifiers.

**Q: Will this device decode dolby e-ac-3 (enhanced ac3)?**
A: no

## Customer Reviews

### ⭐⭐⭐⭐⭐ Decodes surround channels 5.1 with switchable 5.1 or 2.1 output
*by C***A on February 14, 2022*

The SOUTHSKY 5.1/2.1 Audio Rush Digital Sound Decoder works great for connecting my stereo Sennheiser headphones. I'm taking 5.1 surround sound from a gofanco extractor and decoding to analog RCA outs. This unit has a switch that combines the 5 surround channels making left front and right front mixed stereo outputs plus subwoofer out. I am finally able to keep surround sound playback in the room and provide headphone audio for my wife. Other splitters I have tried always switched my Receiver from 5.1 surround encoding to PCM stereo when I connected to use the left and right RCA outputs. This unit connected to a gofanco HDMI to HDMI extractor set to 5.1 surround makes my Receiver stay in surround mode so all my devices ( Firetv, Blu-ray player & Dish TV) play out surround sound.

### ⭐⭐⭐⭐⭐ The little box that could
*by F***E on January 12, 2023*

This is exactly what I needed to convert a smart TV (with only SPDIF) to use a Sony receiver (with no SPDIF input) and surround system I was given. Works exactly how I wanted it to and works flawlessly. It is true that the sound depends on the source, so if the source says 5.1 and it turns out to be something else, you won't get exactly 5.1 surround, but you will still get sound. This has worked for everything I cared about on that smart TV and finally allowed me to use those beautiful speakers built into my walls that came with the house.

### ⭐ Doesn't work, what more to say?
*by P***A on December 20, 2025*

Dead on arrival, nuff said. Tried different sources, connectors, even different power supply. Even did an A/B with an existing decoder just to make sure it wasn't the source. It's a POS, stay away.

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**Shop now:** [https://www.desertcart.com.pa/products/239103242-southsky-5-1-2-1-audio-rush-digital-sound-decoder](https://www.desertcart.com.pa/products/239103242-southsky-5-1-2-1-audio-rush-digital-sound-decoder)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-03-02*