Arcam FMJ AV9 - Manual (Page 14)

AV9
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AV9
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3 – Speaker delay settings
Note: Only enter these delay settings once you have specifi ed what delay units (i.e.,
Time, Imperial or Metric) you will be using, or the information will be lost when
changing units. The measurement units can be specifi ed on page 1 of this menu
(described on page 12).
The speaker distance control automatically sets
the appropriate time delays required for all the
speakers in your system. To set up the correct
speaker distance, you must measure from the
usual listening position to the front of each
individual speaker in the system. If the delay
units are set to Time, then enter the delay in
milliseconds for each channel.
The delay adjustment is not a substitute for proper speaker
placement, but helps to ensure accurate and correct signal
arrival times from all the channels to the primary listening
position.
No measurement can be entered for a speaker that is not
selected in the previous ‘Speaker Sizes’ menu.
4 – Level settings
It is very important to calibrate the speakers correctly to achieve an accurately-centred
sound stage. We recommend you use a sound pressure level meter (SPL meter) to
perform this part of the setup as it is diffi cult to judge the levels accurately by ear alone.
Manual is best for setting up with an SPL meter as the test tone will not change to the
next speaker until instructed by you. Auto is best for setting up by ear as the test tone
changes automatically to each speaker after a two second burst of sound.
On fi rst installation, watch the OSD display as you cycle through the available speakers
with the test tone. Check that the speaker in use corresponds to that indicated on the
OSD. If there is an error then check and correct the system cabling before proceeding
further.
To calibrate the speakers with an SPL meter, place the meter at ear level with the
microphone pointing towards the ceiling, when seated in the usual listening position. You will need to
set the meter to ‘C’‚ setting with a ‘slow’‚ response and to read 75dB SPL at the centre of the scale. This
volume is equivalent to normal conversation.
Each speaker can be fi nely tuned by
0.5dB increments to ±10dB . The output from each speaker needs to
be adjusted to the 75dB SPL sound level. No adjustments can be made for a speaker that is not selected
in the previous ‘Speaker Sizes’ menu.
Note: If you do not have an SPL meter, simply set the front left speaker to 0dB on the menu and then
match all the other speakers to this level.
Front
left
Surr
left
Surr
right
Surr
back
left
Sub
woofer
Front
right
Centre
e.g. 3m
(9ft)
e.g. 4m
(12ft)
e.g. 2m
(6ft)
Surr
back
left
Surr
back
right
Distance measurements for 5.1 [and 7.1]
speaker delay settings
3 - Delay Settings
Front Left: 3Ft
Centre: 3Ft
Front Right: 3Ft
Surr. Right: 3Ft
Surr. Back L+R 3Ft
Surr. Left: 3Ft
Subwoofer: 3Ft
4 - Level Settings
Test Tone Cycle: Manual
Front L: ---I--- +0dB
Centre: ---I--- +0dB
Front R: ---I--- +0dB
Surr. R: ---I--- +0dB
Surr. BR: Not Present
Surr. BL: Not Present
Surr. L: ---I--- +0dB
Subwoofer: ---I--- +0dB
Select Speaker for Tone