5.3.4 Compression - Classe Audio SSP-25 Owner's Manual

while you are making this setting and you will be able to immediately hear the affect. When you have arrived at a
setting you want and it is in the display, merely press the > or < key to store the setting and go back one menu step.
Note: The above settings affect only the "Stereo Sur(round)" effects, not any of
the other effects. When playing a CD or DVD in Stereo Surround mode the
effects set up above will be in force. Stereo Surround effects will not affect any
other playback mode.
5.3.3 INPUT type setup
Press MENU once to exit "Stereo Sur setup" and go back to "Mode setup." "Stereo Sur setup" will move to the lower
line. Press either the > key or the < key to move to "Dolby Dig(ital) setup." Some AC3 laser discs and DVDs are
recorded in stereo. You can tell the SSP-25 to recognize this and play in two channel or in surround. AC3
specifications allow the user to reduce the dynamic range of a given playback utilizing compression. You set this up in
Mode setup and turn it on or off when you want to; perhaps at night when you don't want to disturb your neighbors.
Press ENTER to select "Dolby Dig setup."
"Dolby Dig setup" moves to the top line and "2ch P(ro)L(ogic): auto-on" appears in the second line. (If this setting has
previously been changed then the selected setting will be displayed). This setup option allows you to program how the
SSP-25 will process 2-channel Pro Logic Dolby Digital recordings. By pressing the "/\" or "\/" keys you can cycle
through the four available choices: "Auto-on", "on", "off", "auto-off." The SSP-25 will automatically detect Dolby Digital
encoding and depending on this setup option will decode it to Dolby Pro Logic or to Two Channel Dolby Digital.
What you have is two encoding methods; either plain old two channel digital (Stereo) called Two channel Dolby Digital
or play the familiar Dolby Surround (4 channels: Front Left, Front Center, Front Right and Surround (surround is
generally two speakers wired in parallel, one on either side of the room)).
On:
Always select Dolby Pro Logic processing. (even if only two channel signal is present)
Auto-on:
Select Dolby Pro Logic unless the bitstream information declares the signal
"NOT Pro Logic encoded." (Plays two channels only if not Pro Logic encoded)
Auto-off:
Select Dolby Digital unless the bitstream information declares the signal being
"Pro Logic encoded." (Always plays two channels unless there is a Pro Logic flag).
Off:
Always select Dolby Digital. (Always, and only, play Front Right and Front Left channels, even when the
signal is encoded with Pro Logic (surround) information).
When you have arrived at a setting you want and it is in the display, merely press the > or < key to store the setting
and go back one menu step. We recommend you use the default. You are less likely to miss a surround sound event,
as the SSP-25 will always attempt to decode into Pro Logic, unless there is a flag in the digital data which says there is
no surround information.

5.3.4 COMPRESSION

Going back (or forward) one step takes you to "Compr.: Full" . (If this effect has previously been changed then the
selected effect will be displayed). Depending upon your neighborhood and family you may or may not ever use this
function. All you are doing here is selecting whether you want strong limitations on dynamics or just a medium
limitation to occur when you press the COMPR key. The affect of compression is to limit the amount of dynamic range;
to reduce the difference between soft passages and loud passages. Try listening to a Dolby Digital DVD and gauge the
affect it is. Select the one which sounds the best to your ear, or the one which doesn't wake up your neighbor.
Note: The above settings affect only the "Dolby Digital, (AC3)" effects and not any
of the other effects. When playing a laser disc or DVD encoded in AC3 the effects
set up above will be in force. Compression is a temporary effect, it will not work
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