MartinLogan Descent [7/20] Multi channel mode

Multi-Channel Mode

This setup is recommended if you will use your Descent in

a dedicated home theater or multi-channel system. When a

signal is connected to the Descent’s LFE input, the Descent’s

internal low pass filter is not active. By following this setup,

you will allow your processor to handle most of the bass

management.

Signal Connection (see figure 4—RCA shown):

1 Connect the LFE/0.1 subwoofer output of the processor

to the LFE input of the Descent using either an RCA or

an XLR interconnect.

WARNING!

Based on the performance of most processors,

it is recommended that MartinLogan center and

effects type speakers (i.e. Cinema, Theater and

Script) not be run in large, wide or full range mode.

Doing so may potentially damage the speaker if

the processor attempts to drive the speaker beyond

its rated frequency range. This warning also

applies to products from other manufacturers.

It is recommended to run center and effects type

speakers in limited or narrow mode.

Recommended Control Settings (see figure 5):

1 With multi-channel source material playing, adjust the

subwoofer level control to your preferred level.

2 Adjust the phase control until ideal blending is obtained.

If you can hear no discernable difference leave the phase

control at 0°.

3 If you have completed steps 1–2 and still have weak or

boomy bass, adjust the 25Hz knob to compensate for

these anomalies. Turn the 25Hz control up and down and

listen to the effects that it has on the sound. Try to find a

position that sounds correct to you. Experiment by chang-

ing the level control while adjusting this knob. You should

be able to find a position that gives you deep extended

bass and good blending with your main speakers.

4 Follow the instructions in your processor manual to fine-

tune the subwoofer level.

Connections and Control Settings 7

Figure 4. Signal Connection for Multi-Channel mode.

Figure 5. Control Settings for Multi-Channel mode.