Sherbourn Technologies PT-7010A - Manual (Page 39)

39
3) The PT-7010A automatically sets the appropriate delays
for each speaker so the sounds arrive at the primary
listening position at the correct time.
4) Use the table at the right to record your speaker distance
measurements.
Speaker Placement Tip - There is no substitute for well
placed speakers, especially in pairs and especially in the
main front (L, C, R) positions. If you can place the main
speakers equidistant (at similar distances) from the
primary listening position, you will enjoy the most
balanced sound levels from most points in the room. The
farther away or closer the left speaker is from the listener
(when compared to the right speaker), the more delay one
will have over the other. Sitting nearest the speaker with a
high degree of delay does not sound natural. Read more
about speaker placement tips in the “Speaker Placement
Tips” section.
SPEAKERS Menu - CALIBRATION
The calibration procedure allows you to adjust the volume
level of each speaker in turn until they are all equal. This
will give you the best Home Theater performance. You
should only do this calibration when you are sitting in
your usual listening/viewing position.
Preliminary: Play a movie and adjust the volume for a
comfortable listening level. The volume of the calibration
test noise is linked to the setting of the main volume
control, so if the test noise is too quiet, turn the main
volume up a little and retry.
1) Use the OSD to navigate to the SPEAKER
CALIBRATION menu.
2) Press the remote’s joystick down to turn on the noise
generator. While the test signal is playing in each speaker,
its level can be adjusted using the joystick left/right
buttons. Adjust each speaker in turn until they are all equal
in volume.
The best results are obtained if you use a Sound Pressure
Level (SPL) Meter. This is a hand held meter which will
accurately measure and display the sound level. Adjust
all of the speakers until they are playing within 1 dB of
each other. Without a meter, you can still obtain good
results with careful listening.
3) Repeat the procedure several times for each speaker
until you are satisfied they are playing at the same level.
4) Press the joystick UP to return to the top of the menu,
and then press joystick LEFT to exit. The calibration noise
generator will turn off.
SPEAKER POSITION DISTANCE
LEFT MAIN / SIDE
RIGHT MAIN / SIDE
CENTER SPEAKER
LEFT SURROUND
RIGHT SURROUND
LEFT SURROUND BACK
RIGHT SURROUND BACK