Quote:
Originally Posted by rpneuss
Follow Big Daddy's sticky quoted in Reilly's post at the top of the previous page.
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Thanks for that thread. So it looks like it needs to be 120Hz cause theJman is talking about LPF on the speakers. It looks like the LFE (.1) just goes to sub and the LPF gets built into the LFE.
Variable Crossovers for all Speakers: The most modern AVR's and processors allow you to set different crossover frequencies for the front, center, side surround, and rear surround speakers. In addition, they allow you to set a low pass filter (LPF) for the LFE (.1) channel. Although these systems are more flexible and complex, they are not necessarily better and need some degree of expertise to be set properly.
Normally you set the LPF of LFE to 120Hz to make sure you receive all the information that the audio engineers put in the LFE channel. At the same time, you want to make sure that frequencies above 120Hz will not go to your subwoofer as it is possible that some discs, particularly older DVDs, may have a full-range LFE channel due to poor and careless engineering.
The LFE channel is an independent channel and has no effect on the other speakers. The information that is in the LFE channel extends up to 120Hz regardless of whether you have bookshelf speakers or full-range super tower speakers. It is important to distinguish between the LFE channel and what goes to a subwoofer. The LFE is a production channel, whereas the subwoofer is a playback channel. The sound engineers determine what goes to the LFE channel, and the users of the home-theater systems determine what ends up coming out of the subwoofer.
Thanks Again RPN