Manual Speaker Setup - McIntosh MX121 Owner's Manual

Manual Speaker Setup

The MX121 with built-in Audyssey
performs all the necessary speaker settings and
corrects for the undesirable room acoustic. Refer to
page 17. If for some reason you desire to manually
enter all the speaker settings perform the following:
1. Press the MENU Push-button, then select "Man-
ual Setup", "Speaker Setup" and then "Speaker
Config". Refer to figure 19.
MANUAL SETUP SPEAKER SETUP
SPEAKER CONFIG
Front Small
Center Small
Subwoofer Yes
Surround Small
S. Back Small
2spkrs
F. Height Small
F. Wide Small
Select front speaker size
Figure 19
2. Following the instruction On-Screen, use the Di-
rectional Push-buttons to enter the speaker config
information.
Note: Loudspeaker are consider "Large" when
response goes down to at least 40Hz (-3dB).
Loudspeakers not capable of response down to
40Hz (-3dB) are consider "Small".
3. Press the RETURN Push-button and then select
"Bass Setting". Refer to figure 20.
MANUAL SETUP SPEAKER SETUP
BASS SETTING
SW Mode LFE
LPF for LFE 120Hz
Play bass of Small speakers & LFE from SW
Figure 20
automatically When the Front Speakers are Large, the Low Fre-
®
quency Audio Signal is reproduced just by the Front
Loudspeakers. The Subwoofer reproduces the LFE
(Low Frequency Effect) Signal plus any Low Frequen-
cy Signals not reproduced by Small Speakers in the
System. When the Bass Setting is set to "LFE + Main"
the Low Frequencies reproduced by the Front Speak-
ers will also be reproduced by the Subwoofer.
4. Set the SW Mode to the desired setting.
5. Select the "LPF for LFE" and set the LPF to the
Highest Frequency Signal reproduced by the Front
Large Speakers and is also sent to the Subwoofer.
6. Press the RETURN Push-button and then select
"Distance" Setting. Refer to figure 21.
RETURN Return
Return settings to the default
7. Measure and enter the distance from the main
listening/viewing to each of the speakers.
8. Press the RETURN Push-button and then select
"Channel Level" Setting. Refer to figure 22.
9. Using an accurate Sound Pressure Meter, mea-
sure the test signal coming from the speakers and
make adjustments to achieve the same level for
each of the speakers.
10. Press the RETURN Push-button and then select
"Crossover Frequency" Setting. Refer to figure 23.
If there are speakers in the system considered small
RETURN Return
and they have the same Low Frequency Response
MANUAL SETUP SPEAKER SETUP
DISTANCE [1/2]
Unit Feet
Step 1ft
Default
Front L 12.0ft
Front R 12.0ft
Center 12.0ft
Subwoofer 12.0ft
ENTER Enter RETURN Return
Figure 21
Setup Mode, con't
MANUAL SETUP SPEAKER SETUP
CHANNEL LEVEL
Front L 0.0dB
F. Height L 0.0dB
Center 0.0dB
F. Height R 0.0dB
Front R 0.0dB
F. Wide R 0.0dB
Surround R 0.0dB
S. Back R 0.0dB
Select speaker and adjust volume
Figure 22
MANUAL SETUP SPEAKER SETUP
CROSSOVER FREQUENCY
Crossover 80Hz
Set crossover for all each speaker
Figure 23
(-3dB point) then set the "Crossover _ _ _Hz" set-
ting to that frequency. When there are speaker(s)
with different Low Frequency Responses, select the
"Crossover Advanced" setting. Then set the crossover
frequency accordingly. Refer to figure 24.
MANUAL SETUP SPEAKER SETUP
CROSSOVER FREQUENCY
Crossover Advanced
Front 100Hz
Center 100Hz
Surround 40Hz
Surround Back 40Hz
Set crossover for all each speaker
Figure 24
11. Press the MENU Push-button to exit Setup Mode.
RETURN Return
RETURN Return
RETURN Return
25