the OSD. The selected menu item should be left front.
4.Use the 
and 
buttons to adjust the channel trim. You can adjust the selected channel trim level in 1dB steps across a range of
5.Press the 
button when you have finished making the channel trim adjustment. If necessary, repeat steps 4 and 5 until you have completed setting the level for each speaker in your system.
6.Press the 
button when you have finished making the channel trim adjustment to all the speakers in your system to select the return to main menu option.
7.Press the select or menu button to return to the main menu, or press the menu button twice to exit.
To adjust channel trim using the trim function:
1.Press the ch. trim button on the front panel or the remote control. The front panel display and the OSD will show the following:
2.Use the 
and 
buttons to adjust the channel trim level. You can adjust the selected channel level in 1dB steps across a range of
3.When you are finished adjusting the channel trim for the selected speaker, press trim again to cycle to the next channel. The unit cycles through the speakers in the following sequence:
left front, center front, right front, right surr, right back (surround), left back (surround), left surr, subwoofer
If necessary, repeat steps 2 and 3 until you have adjusted the channel trim of all the speakers in your system.
4.Press the ch. trim button on the remote control again to exit the channel trim function.
Remember to return any channel(s) that you have trimmed back to the original setting when you are done watching the particular program. If you find you are continually trimming the same channel(s) by the same amount for every film, you might want to consider
3.6 Delay Configuration
Setting the speaker delay is crucial to the proper perfor- mance of any surround decoder component like the GTP-
880.Your home theater system will not perform properly if this process is not completed.
To accomplish this process you will need a tape measure or other means of determining the distance of each speaker from the primary listening position.
To set the speaker distance delays for your speakers:
1.Press the menu button to enter the main menu. The main menu appears the OSD. The cursor on the OSD should be pointing to the input configuration menu.
2.Press the 
button until the delay configuration menu is selected.
3.Press select to enter the delay configuration menu.
The delay configuration menu appears on the front panel display and the OSD. The selected menu item should be front L/R delay.
Before setting the speaker distances, you need to choose what unit of distance you will be using.
4.Press the 
button repeatedly until the distance unit menu is selected.
5.Use the 
and 
buttons to select between feet and meters.
6.Press the 
button repeatedly until you return to the front distance menu. To set the distance for each group speakers in your system, you will need to measure, the distances from your chosen listening/viewing position to the various loudspeakers in your system.
Set the distance for the front L/R speakers to the nearest foot/meter. Rounding up is OK. Distances can be set in the following increments:
Feet 0 to 20 feet in 1 foot increments.
Meters 0 to 6 meters in 0.3 meter increments.
ADCOM
