ROTEL RTC965 - Manual (Page 21)

RTC-965
21
SURROUND MODE Menu
SURROUND MODE
Mode: DOLBY PRO LOGIC
Delay Time
CENTER:
____
REAR: 20ms
DOWN–selection ENTER–change
BACK-return MENU-screen off
The SURROUND MODE menu provides status information and
configuration options pertaining to the surround operation. This
screen is available from the MAIN menu. The screen displays the
following status information:
MODE: the currently selected surround sound mode (PRO LOGIC,
DSP, 3-STEREO, etc.) Remember that Dolby Digital and DTS are
automatically enabled based on source material encoding and,
therefore, no setting is required.
DELAY TIME (center): the current delay setting for the center
channel speaker; only available in Dolby Digital mode
DELAY TIME (rear): the current delay setting for the rear surround
speakers
In many systems, the factory delay settings will be satisfactory.
However, delay times may need to be adjusted depending on the
relative distance from the listening position to the front and rear
speakers so that you do not hear, for example, an explosion in a
soundtrack start in the rear of the room instead of the front. In-
crease the relative delay to the rear speakers if they are located
closer to the seating area than the front speakers.
Change a setting by moving the cursor to the desired line using
the UP/DOWN buttons on the remote or the NUMERIC Keypad
front panel buttons (
), adjust the setting using the ENTER re-
mote button. Return to the MAIN menu by pressing the BACK but-
ton. Cancel the On-Screen Display by pressing the MENU button.
TEST TONE Menu
TEST TONE
Front - L
Center
0dB
Front - R
Rear - R
0dB
Rear - L -5dB
Subwoofer 0dB
DOWN–selection VOLUME–change
BACK-return MENU-screen off
This menu is used to set equal volume levels for all speakers
(front, center, rear, and subwoofer) for proper Dolby Digital and
DTS reproduction. For best results, you should perform the test
tone calibration in DOLBY DIGITAL surround mode. To do this, you
will need to play a Dolby Digital source so that the RTC-965 can
automatically sense it and activate the DOLBY DIGITAL mode.
Then, enter the On-Screen Menu system and select TEST TONE
from the MAIN menu to reach this screen. If you adjust this menu
while in PRO LOGIC mode, only one of the rear adjustments will be
available as the two rear speakers share a common signal in PRO
LOGIC mode.
When you enter the TEST TONE menu, you will hear a test tone
coming from the highlighted speaker. Highlight different speakers
by moving the cursor to the desired line using the UP/DOWN but-
tons on the remote or the NUMERIC Keypad front panel buttons
(
). The test tone will shift accordingly to the selected speaker.
While seated in the normal listening location, switch the test tone
to the various speakers. Using the front speakers as a fixed refer-
ence (there is no adjustment for the front), listen to hear if the
center speaker or the rear speakers are noticeably louder or qui-
eter than the front speakers. If so, adjust the speaker’s volume
levels up or down to match the front speakers using the VOL UP/
DOWN remote buttons. Continue switching among the speakers
and adjusting until the center speaker and both of the rear speak-
ers sound as loud as the front speakers.
Return to the MAIN menu by pressing the BACK button. Cancel
the On-Screen Display by pressing MENU.
Note to Perfectionists: This calibration will be more accurate if
you use a sound pressure level (SPL) meter to measure the output
of each speaker instead of relying on your ear. SPL meters are
available from electronics stores, or your authorized Rotel dealer
may loan you one. Set the meter to its SLOW response time with
C-weighting and be sure to hold it away from your body. The goal
is to adjust each speaker so that the meter provides the same
reading for each of the speakers in your system.