Extron electronics SSP 7.1 User Manual page 38

Extron recommends that the SSP 7.1 Setup and Control Software is used to set speaker delays,
using either of the following methods.
Two person setup
NOTE: Setting up speaker delays is easier with two people. If only one person is available,
the position of the ears of the listener must be marked precisely. A pile of boxes could be
used to ensure that the distances are consistently measured to the correct height. Do not
try to guess ear positions, as this introduces measurement errors.
1. Pick an ideal central location where all speaker output signals converge.
2. Use a tape measure to measure the distance from each speaker to the convergence
location. Be sure to measure to the same spot from each speaker.
NOTE: Measurements from the speaker must be to the midrange driver in a three-way
speaker or from halfway between the tweeter and the woofer in a two-way speaker.
Measurements to the convergence locations must be at ear height.
3. Click on the
Feet (ft)
Distance values for each speaker (in feet or meters) in the boxes in the SSP 7.1 Setup and
Control Software
Speaker Delay
in increments corresponding to steps of 0.1 ms (0.12 feet or 0.03 meters). The software
automatically selects the farthest speaker and calculates the delay time (in milliseconds) for
each speaker.
These values are shown in the Calculated Delay box. The current values are shown in blue,
changes (yet to be saved) are shown in orange.
Calculated Delay
Left Front Center
0.0 ms 0.0 ms
1.7 ms
Left Surround
0.0 ms
4.4 ms
Left Back Subwoofer
0.0 ms 0.0 ms
1.8 ms 3.6 ms
Figure 35. Calculated Delay — Values Pending
or button to select the units and enter the Speaker
Meters (m)
tab. The and
up down
Right Front
0.0 ms
Right Surround
0.0 ms
4.4 ms
Right Back
0.0 ms
1.8 ms
SSP 7.1 • Setup and Control Software
( { ) arrows increase the distance
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