this would be a more propper test if you would test useing some dolby or dts format if it supports any at all or flac or lpcm test 5.1 can downmix itself to quadrophonic systems which is what this is depending on the format of your system may have to use apo drivers to get it working sense this dose not seem to have hdmi good luck
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this would be a more propper test if you would test useing some dolby or dts format if it supports any at all or flac or lpcm test 5.1 can downmix itself to quadrophonic systems which is what this is depending on the format of your system may have to use apo drivers to get it working sense this dose not seem to have hdmi good luck