Connecting The Subwoofer And Setting Controls; Before Connecting The D Ynamo; 2-Channel Mode - Martin Logan Dynamo 600X Manuel De L'utilisateur

C
onneCting the
Before Connecting the d
MartinLogan developed the D
ynamo
system integration. Before beginning to connect your subwoofer,
please review the controls discussed in the last section. An under-
standing of these will help speed you along. All signal connections
are done on the rear connections panel of the subwoofer. Make cer-
tain that all of your connections are tight.
WARNING!
Unplug your subwoofer before making or breaking
any signal connections!

2-Channel Mode

This setup is recommended if your subwoofer will be used in
a 2-channel only system. When a signal is connected to the
subwoofers Left In/Right In, the Low Pass Filter control is active.
Signal Connection:
1 Connect the left out/right out from your preamp/receiver to the
Left In/Right In of the subwoofer. Use RCA interconnects or speak-
er level connections, but choose only one connection method—do
not use multiple methods of connection at the same time. Speaker
level connections are discussed in detail later in this manual.
Recommended Control Settings:
IMPORTANT! If you intend to use Anthem Room Correction (ARC)
room correction we recommend running ARC and optimizing
placement of your subwoofer prior to adjusting the subwoofer's
controls. When engaged, ARC will alter the acoustic output of
your subwoofer and influence the settings described below.
1 Set the subwoofer's Control Setting to App.
2 Calculate the number equal to 70% of your main loudspeak-
er's lowest frequency rating. Set the Low Pass Filter to a setting
equal to the resulting number. If the resulting number is lower
than 30Hz, set this to 30Hz.
3 Play familiar music with bass content. Increase the Volume
(level) until the music has deep extended bass. Be careful to
avoid levels that become overwhelming.
4 Try the Phase and Polarity (Inverted) in different settings until
the best blending is obtained. Play familiar music with deep,
repetitive bass. Adjust the Phase and Polarity (Inverted) setting
s
ubwoofer and
ynamo
subwoofer for easy setup and
s
etting
so the bass notes seem their loudest and without blur when
heard from your typical listening position. If you are augmenting
MartinLogan loudspeakers, we suggest you start with Phase set
at 90° (with Inverted polarity turned on) when experimenting.
5 If you have completed steps 1–4 and still have weak or boom-
ing bass consider adjusting the 20–30Hz Level to compensate
for these anomalies. Experiment by changing the Volume (level)
setting while adjusting the 20–30Hz Level and try to find a
position that gives you deep extended bass and good blend-
ing with your main speakers. If you still have weak or booming
bass you may want to consider moving your subwoofer and
go through these setup steps again (especially if it is located in
or near a room corner). Remember, room position has a major
impact on overall bass performance.
Receiver/Preamplifier Receiver/Preamplifier
Left Out Left Out
+
Speaker
Level
Input
Right In
–
+
Speaker
Level
Input
Left In
–
Figure 15. Signal connection for 2-channel mode.
C
ontrols
Right Out Right Out
Line Level
Input
LFE In
Dynamo
Subwoofer
9