How to Convert 2.1 Into 7.1 Surround Sound
- 1). Turn on your surround sound system and 2.1 stereo audio source.
- 2). Switch the input mode on your surround sound system to the input you have the 2.1 stereo audio device plugged into -- for example, A/V or stereo.
- 3). Select the "Pro Logic IIx" sound mode by pressing the "Sound mode" up/down arrow buttons on your surround sound system remote control. Once selected, start playing the desired audio on your 2.1 stereo audio source. It will now be converted to full, rich 7.1 surround sound and start playing through your system's speakers.
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