Table of Contents
Advertisement
Global Setup (cont.) - Time Delay Adjustment
Pro Logic Surround Channel Delay Setting
Once you have set the surround channel
delay for AC-3, you will need to also set it
for Pro Logic. Use the same measurements
taken for AC-3 and apply them to the Pro
Logic Rear Channel Delay Chart. Note,
while both the Pro Logic and AC-3 charts
look similar, they are in fact marked differ-
ently.
Example (cont.)
Since the surround speakers are 10 feet
from the seating area and the front speak-
ers are 15 feet from the seating area, the
surround (or rear) channel delay for the Pro
Logic is 20 ms.
To adjust the delay times for the surround
channels, follow these following steps.
1
Press the INPUT SELECT button until the SSD-66 (5.1) display indicates "LASER
PCM" or any other Pro Logic Input.
2
Press the MODE button and make certain the "PRO LOGIC" mode is selected. If
the SSD-66 (5.1) is not in the "PRO LOGIC" mode, you will not be able to continue
with this time delay adjustment.
3
Press the DELAY button until it is lit.
4
Repeatedly press the REAR button until the display reads the appropriate rear
channel delay settings. As you press the REAR button, the display will advance in
1 ms increments between 15 ms and 30 ms.
Dolby Pro Logic
Surround Delay Chart
40
35
30
25
20
15
10
5
0
0
5
10
15
20
DISTANCE FROM FRONT SPEAKERS (FEET)
USABLE SPEAKER PLACEMENT RANGE WITH
XX ms DELAY TIME
- 31 -
25 ms
20 ms
15 ms
15 ms
15 ms
15 ms
10 ms
5 ms
DIFFERENTIAL
ARRIVAL TIME
PREFERRED
ACCEPTABLE
25
30
35
40
NOT RECOMMENDED
Advertisement
Table of Contents
