Measured using ITU-R BS.1770-4 loudness meters:
If you select 5.1 on a stereo TV, your TV will just "downmix" it back to stereo anyway, which can sometimes result in slightly lower volume. Match the setting to your gear for the best dynamic range. netflix 5.1 audio vs original
For those debating "Original" vs "5.1" on Netflix: It depends on your hardware. Measured using ITU-R BS
