Used when your source is sending standard stereo audio (like YouTube videos or music). The internal hardware matrix upmixes the stereo signal, creating simulated surround sound across all 5.1 speakers. 5. Troubleshooting and Corrections Issue 1: No Sound / Static Noise
HD Audio Rush 5.1 Decoder is a budget-friendly, standalone digital-to-analog converter designed to bridge the gap between modern digital sources and legacy 5.1 analog speaker systems. While it provides an accessible entry into surround sound, its performance is often inconsistent due to numerous hardware revisions and "fake" versions on the market. Performance & Sound Quality Decoding Capability : It effectively decodes Dolby Digital (AC3), DTS, and PCM streams into 5.1 analog channels. Stereo Processing : For standard stereo signals, it uses Dolby Pro Logic II to simulate surround sound across all speakers. Audio Flaws : Enthusiast reviews from Dr. Lex' Site note a lack of the standard +10dB LFE boost
The HD Audio Rush 5.1 is a digital audio decoder that converts modern digital audio signals into old-fashioned analog output. It is designed to bridge the gap between modern devices that output audio via optical (SPDIF/Toslink) or coaxial cables and older sound systems that only accept analog inputs via standard RCA cables.
Because there was no single manufacturer, the device has been sold under various brand names like ULTRABYTES, Tobo, microware, and Etzin, often on sites like eBay and Amazon.
: Many users "patch" the blindingly bright blue LEDs by covering them with tape or replacing them. Reference Manuals hd audio rush 51 decoder manual patched
What are you connecting to the decoder?
Connect the 6 RCA outputs to your 5.1 amplifier inputs. Power: Connect the 5V DC power supply.
Using the HD Audio Rush decoder is straightforward. Here is a step-by-step guide to properly set up your device:
Switches output mode between standard 2-channel stereo and decoded 6-channel surround sound. Rear Panel Connections DC/5V: Power input jack. S/PDIF 1: Primary Optical Input. S/PDIF 2: Secondary Optical Input. Coaxial: Coaxial Digital Input. CEN/SUB: Analog output for Center and Subwoofer speakers. Used when your source is sending standard stereo
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DTS-ES, DTS, AC3, Dolby Digital, Dolby Pro Logic, DTS-CD, LPCM. Inputs: 2 x Optical / Toslink (S/PDIF) 1 x Coaxial (S/PDIF) 1 x 3.5mm Auxiliary Stereo (L/R) Outputs:
Indicate the currently selected input source.
3.5mm stereo input for phones, tablets, or standard PC audio jacks. Troubleshooting and Corrections Issue 1: No Sound /
Connect the provided 5V power adapter to the decoder and plug it into an electrical outlet.
: 3.5mm analog input for stereo-to-5.1 upmixing via Dolby Pro Logic II. Connect Outputs
6x RCA ports for Front Left/Right, Surround Left/Right, Center, and Subwoofer.
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