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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
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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.