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MartinLogan Dynamo [5/24] Bout th

Level Knob

Setting the level too high will cause the bass to seem bloat-

ed and is the single most common cause of bad sounding

subwoofers. A rule of thumb is that the subwoofer should

not draw attention to itself, but should simply make the

systems low end seem more extended and accurate.

Low Pass Filter Knob

When the Dynamo is connected in multi-channel mode

(via its LFE input), the low pass filter is not active and your

processor handles the bass management. When con

nected in 2-channel mode (via its speaker or line level

left/right input), the low-pass filter is active.

As a general rule the low pass filter should be set at the

option approximately equal to 70% of your speaker’s lowest

frequency response. Example: The MartinLogan Aeon i’s

lowest frequency response is 43Hz. 70% of 43Hz equals

30.1, so you should set the Dynamo’s low pass filter to 30Hz.

Remember, this is a general rule. We advise that once you

try the recommended setting using the formula above, you

should try the surrounding settings to see which sounds best.

Phase Control Switch

The phase control is entirely dependent on the size and

configuration of your listening environment, the placement

of the unit, and your seating arrangement. Due to the way

bass sound waves develop in different rooms, there is no rule

of thumb for setting phase. For instance, if your room has

a peak at the subwoofer crossover area, you may wish to

set the phase so the actual acoustic outputs of the subwoofer

and main speakers are out of phase. Experiment, try dif-

ferent settings and be patient.

Auto/On/Standby Power Switch

The Auto/On/Standby switch controls Dynamo’s energy

saving feature. When set to 'Auto', the Dynamo will turn

on when a music signal is detected and off when there is

none. The 'On' setting prevents the Dynamo from enter

ing energy saving mode. The 'Standby' setting forces the

Dynamo into energy saving mode. While set to 'Standby’,

the Dynamo will not perform.

Status Light

The Dynamo is equipped with a multi-color LED to indicate

the subwoofers current status. The following list explains the

meaning of the different colors:

No color: No power. The Dynamo is not plugged in.

Red: Energy saving mode and safety mode. If the power

switch is set to ‘Auto’ this indicates the Dynamo detects no

audio signal and has automatically switched into energy

saving mode. Setting the power switch to ‘Standby’ will

force the Dynamo into this mode. This also indicates if the

Dynamo’s temperature has exceeded nominal operating

range. The Dynamo will resume normal play mode when the

temperature-sensor reports a safe operating temperature.

Green: Play mode. If the power switch is set to ‘Auto’

this indicates the Dynamo detects an audio signal and has

automatically switched into play mode. Setting the power

switch to ‘On’ will force the Dynamo into this mode.

ABOUT THE CONTROLS

About the Controls 5

Figure 1. Dynamo controls.

MartinLogan Dynamo [5/24] Bout th

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