Video Asylum

Posted by sam9 (A) on July 19, 2005 at 22:32:39

In Reply to: OFF TOPIC - multi-room on the cheap with AV Receiver? posted by zoomin on July 19, 2005 at 12:35:41:

"I do remember hearing that some of them do not push full range (20-20,000) to the surround channels"

These days most (virtually all?) amplifier designs cover the 20-20kHz band with no special attention. It would actual take some effort to limit one to that. More likely what you hear is that the surround content (DVD, etc) typically covers less than that. In fact I believe the THX standard specically limits it. If that is the case it most likely done by digital filters.

For what it is worth there is surprising little content (music or movies) over 8kHz.

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