# Best way from stereo to 2.1 audio?

**URL:** <https://boards.straightdope.com/t/best-way-from-stereo-to-2-1-audio/596924>\
**Category:** Factual Questions\
**Created:** [September 20, 2011, 10:24am UTC](https://boards.straightdope.com/t/best-way-from-stereo-to-2-1-audio/596924 "2011-09-20T10:24:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![komolono](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/komolono/32/532_2.png) [@komolono](https://boards.straightdope.com/u/komolono)\
**Post date:** [September 20, 2011, 10:24am UTC](https://boards.straightdope.com/t/best-way-from-stereo-to-2-1-audio/596924/1 "2011-09-20T10:24:06Z")

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I’d like to connect my mp3 player / computer to an amplifier for bass sounds from a new XPLOD subwoofer speaker. I have an old stereo amp and a mono power amplifier module, but hardwiring preamplified source seems to end up in mono.  
Do I need PT2033 or similar to keep the stereo sound alive?