Sony DFP-R3000 Quick Start Manual page 17

Adjust the Fine Lip Sync by playing a the SDDS Installation reel or a quality, dialog-
heavy feature print (not a trailer, which may have loose sync) and comparing optical
and digital dialog, setting fine lip sync to make the two coincident
Verify your setting by watching the film from a mid-audience position and check that the
dialog synchronization appears to be correct.
The bottom board is the APR-57 board,
where a jack connector for headphones
is located on the right hand side.
Connect your headphones to this
output.
The left output will contain the bypass
(AUX) center channel and the right
output will contain the SDDS center
channel audio.
17. If the output of the central cinema
processor (which is routed to the DFP-
2500 AUX input) requires a different
subwoofer level setting than the SDDS
playback, go to the AUX Input pulldown
menu and select the desired offset.
This does only apply if the B-chain of
the DFP-2500 is enabled for the AUX
input.