Page 46
To proceed, you will first determine where your primary listening
viewing seating position will be. Next you will want to measure the
distance from the primary listening/viewing position each speaker
using a tape measure. Your measurements need to be accurate to
within 6 Inches (1/2 Foot). Follow these steps:
1
Determine the primary seating position and use it as the
measuring center point.
2
Measure the distance to each speaker and write them on a
piece of paper. You can use the blank chart found on
page 36 which is identical to the sample chart on the next
page.
3
Determine which of the speakers is furthest away and use
this speaker as the “Reference Speaker”. In most home
theater systems, the front right and left speakers are typi-
cally of equal distance from the seating area as are the
left and right surround speakers. If more than one speak-
er’s position is equal to the greatest distance from the
primary seating position, these speakers will also have
no delay.
4
Subtract the distance of all of the speakers from the dis-
tance of the furthest speaker (Reference Speaker). These
numbers will be used as the Delay Settings. The chart
above shows the measurements taken from the example
diagram on the bottom of the previous page. Since the
Front Left speaker is placed the greatest distance from
the seating area, it is used as the Reference Speaker
and requires no delay (Delay = 0 ms). The difference in
the distance of the other speakers from the Reference
Speaker are the actual delay settings. The chart above
details the math involved.
Most home theaters have the
front right and left speakers
equal distance from the main
seating area. The same is
usually true of the surround
left and right speakers as it is
common that they are also of
equal distance from the
primary seating position.
If the front set of right and left
speakers are furthest from the
seating area, they would
together act as the Reference
Speaker and not require any
delay. The distance to one of
these speakers will be used as
a reference and the
appropriate delay would then
be set for the surround,
center, and subwoofer
speakers. In this example, all
speakers are at different
distances.
FRONT LEFT
CENTER
FRONT
RIGHT
SUBWOOFER
LEFT
SURROUND
RIGHT
SURROUND
DISTANCE IN FEET
1 7
1 2
1 5
1 0
8
7
ENTER DISTANCE
OF FURTHEST
FRONT SPEAKER
(REFERENCE
SPEAKER)
1 7
1 7
1 7
1 7
1 7
1 7
ENTER DISTANCE
OF SPEAKER
1 7
1 2
1 5
1 0
8
7
SUBTRACT
SPEAKER'S
DISTANCE FROM
REFERENCE
SPEAKER
0
5
2
7
9
1 0
THESE ARE THE
SPEAKER'S
DELAY SETTINGS
Please note, as the delay range for 5.1 modes is 0-15 ms, the above delay settings
directly apply only to 5.1 decoding modes. For Dolby Pro Logic modes, the delay
range is 15-30 ms. Dolby Pro Logic modes automatically add 15 ms to these numbers