Audio Setup - Ada PTM-6150 Operation & Installation Manual

Audio Setup

The Cinema Reference has been calibrated in the factory for opti-
mum operation. Thus you can at this time decide to run your sys-
tem with just minor adjustments to the Master Volume Control (cen-
ter knob).
However, since not all speaker configurations and rooms are the
same, you may desire to alter the channel balance and delay set-
tings to better suit your home theater system. If you are unfamiliar
with the process of home theater level calibration and the use of an
SPL meter (Sound Pressure Level meter), ADA strongly suggests
contacting an Authorized ADA Dealer for assistance prior to pro-
ceeding.
The Cinema Reference features an internal Pink Noise generator
which is used to determine signal level to each speaker. In order to
best proceed with the remainder of this page's setup instructions, it
is recommended that you use an SPL meter.
The Cinema Reference incorporates two Volume Presets. Both pre-
sets are loaded with ADA's factory default settings for all channels
and all inputs set to -25.0 dB. This level is not to high and you can
always alter the level by simply raising the Master Volume control.
To best calibrate your system:
1 Turn the CHANNEL knob until the display reads VOL RE-
CALL 1 and press the CHANNEL knob.
2 Turn on your SPL meter to the 70-80 dB range, Slow, C
Weighted setting.
3 Turn the CHANNEL knob until the display reads NOISE TEST
and press the CHANNEL knob. The top line of the dis-
play should read NOISE ALL and the second line should
read ALL -25.0 dB. You should also hear very light pink
noise from all of the speakers.
4 Press the CHANNEL knob. Using your SPL meter, slowly
turn the CHANNEL knob clockwise, raising the level of
the pink noise test until the SPL meter reads approximately
75 dB.
5 Press the CHANNEL knob again. Turn the CHANNEL knob
clockwise one click until the display reads NOISE LEFT
and then press the CHANNEL knob.
6 Raise (clockwise) or lower (counter clockwise) the left
channel's pink noise level to approximately 75 dB and
then press the CHANNEL knob.
Page 34
The Cinema Reference comes
preprogrammed "Out Of The
Box' ready to play. Unless
you are going to use an SPL
meter to calibrate your
system, proceed with the
setup as described on page
33 - step 14.
If you are using an SPL meter,
you will first want to set the
pink noise level for all of the
channels to 75 dB.
You will then look to lower
your master volume to a safe
level as 0.0 dB may be too
bright. ADA suggests
reducing the master Volume
to at least -15 dB.
At this time you will want to
load the current volume level
and the individual channel
levels to each other, into
Volume Preset 1. This will
preserve the balance of the
individual speakers.