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🎧 Elevate your sound game—because your ears deserve the surround sound spotlight!
The SOUTHSKY US42 Audio Rush Decoder converts digital optical and coaxial audio signals into 5.1 or 2.1 channel analog output via 6 RCA ports, supporting Dolby AC-3, DTS, LPCM, and more. Featuring dual SPDIF inputs, coaxial and 3.5mm aux, it offers one-key switching, signal memory, and LED indicators for seamless home theater integration with HDTVs, gaming consoles, and AV receivers.








| ASIN | B08KD9NVXY |
| Best Sellers Rank | 249,637 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 575 in Digital-Analog Converters |
| Brand | SOUTHSKY |
| Customer Reviews | 3.6 out of 5 stars 196 Reviews |
| Interface | Coaxial, Optical, RCA |
| Interface type | Coaxial, Optical, RCA |
| Manufacturer | SOUTHSKY |
| Manufacturer Part Number | US42 |
| Maximum Supply Voltage | 5 Volts |
| Maximum supply voltage | 5 Volts |
| Minimum Supply Voltage | 5 Volts |
| Minimum supply voltage | 5 Volts |
| Model Number | US42 |
| Mounting Type | Coaxial |
| Mounting type | Coaxial |
| Number of Channels | 6 |
| Number of Pins | 14 |
| Number of pins | 14 |
| UPC | 788424416316 |
D**A
It works well.
Needed to connect a new tv to an old stereo receiver. It was very easy to setup. No issues getting 5.1 vs 2 channel as some noted. I thought this would be the best connection method, take advantage of the 6 channel input on my stereo. There is one aspect I didn’t think of. there is no method to tune or balance the frequencies of each channel. The cut off to the center and fronts is quite high and thus without a subwoofer connected there is very little bass. Perhaps the alternate method to buy a digital to analog converter and use the stereo’s surround options and settings to get the best sound is a better option for my scenario. But I can’t reduce the rating based that.
C**S
Works great, be aware of volume control limitations.
This worked well out of the box but I missed that it did not have an HDMI in. The optical connection worked but it's basically full volume--TV volume control ignored. I bought this to run powered PA speakers off an an older LG TV with ARC and optical out, a hacked together surround sound with equipment on hand. I did have some buzzing on on the rear channel but I think that was from a substandard cable.
B**N
Not a great product
Was trying to use a set of computer speakers for my home theatre setup. The sound floor is awful, the speakers buzz quite a bit at anything more than half volume and they’ll be there a lot because it made the speakers really quiet. While the surround sound effect was really good with great locational audio (sound stage)
J**.
Stopped working out the box
It stopped working within 10 to 15 minutes of connection! There was a slight static that increased. After powering on/off, all functionality ceased. All I get now is the power light. That said, for the brief 10 to 15 minutes that it worked…it worked. Buyer beware!
C**A
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.
Trustpilot
1 month ago
3 weeks ago