Alaidon subwoofer audio

If you have all the speakers at 50 Hz, it is preferable to set the subwoofer to 80 Hz or 50?

For example, if you have speakers in a version bookself 5.1 or 7.1 home theater setup, which can reproduce sounds up to 50 Hz, and his cabinet weak capacity to reproduce sounds of up to 20 Hz and low pass settings step variable, peripherals for your subwoofer to 80 Hz or 50 Hz?

Depends on whether you have small speakers actually usable output at 50Hz. If you have 5 or more speakers bass, so it is likely, and the 50Hz setting could be better. But for smaller satellites, 80Hz is necessary to ensure a good medium-low. If your receiver is internal crossing should be used instead, and set the subwoofer crossover or detain, or as high as possible. Need more help if you can place the mark / Model of your subwoofer and speakers.