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Author Topic: CP65 - non-sync settings Andy Frodsham Expert Film Handler Posts: 238 From: Stoke on Trent, Staffs, UK Registered: Nov 2006 posted 07-28-2007 12:43 PM                     I'm slightly confused by the two available non-sync settings on our Dolby CP65! Am I right to understand that the standard setting merely sends the right and left non-sync sound to the respective speakers behind the screen? If so, I assume that the surround speakers receive no signal whatsoever? What about the 2:4 setting? I believe this sends information to each of the speakers - but what is it (stereo with ambience etc)? The jumper settings on the Cat 443 allow for the switching on or off of the surround speakers in non-sync. When, and why, would one need to do this in addition to the previous settings?  |  IP: Logged Brian Guckian Jedi Master Film Handler Posts: 594 From: Dublin, Ireland Registered: Apr 2003 posted 07-28-2007 02:02 PM                     The jumper sets either two-channel L/R stereo reproduction (no matrix decoding) or four-channel L/C/R/S matrix decoding. If you set the jumper for 2:4 matrix decoding and have Optical Bass Extension, you can reproduce subwoofer information, giving you 4.1, which can be useful. It's best nowadays to set your non-sync for 2:4 decoding given that the majority of material off CD is likely to be Dolby Surround encoded. But even if not, the 2:4 decoder will still pass through a simple two-channel L/R stereo signal, no essentially all options are covered by using the 2:4 jumper position. I don't have sufficient information right now to answer the second part of your question, but hope the above helps.  |  IP: Logged

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