MartinLogan 1000 user manual About the Controls, Level Knob, Phase Control Switch, Crossover

About the Controls

Figure 1. Dynamo 1000 controls.

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 sys- tems low end seem more extended and accurate.

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 different settings and be patient.

Crossover

When the Dynamo 1000 is connected in multi-channel mode (via its Right/LFE input), the crossover switch should be set to 'Bypass (LFE In)' so that the low pass filter is not active and your processor handles the bass management.

When connected in 2-channel mode (via its line level left/ right input), the crossover switch should be set to 'Variable (L&R In)' so that the low-pass filter is active.

Low Pass Filter Knob

When the Dynamo 1000 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 connected in 2-channel mode via its line level left/right input, the low-pass filter is active.

As a general rule the low pass filter should be set equal to approximately 70% of your speaker’s lowest frequency response. Remember, this is a general rule. We advise that once you try the recommended setting using the for- mula above, you should try the surrounding settings to see which sounds best.

Wireless Sync Button and Status LED (not shown above) The wireless sync button is used to establish connection to the optional SWT-1 MartinLogan Subwoofer Wireless Transmitter (sold separately and available from your autho- rized dealer or the Xtatic shop at www.MartinLogan.com). The Wireless status LED indicates the current status of the wireless connection (see page 10 for further details).

Status LED (not shown above)

When the status LED (located on the back of the subwoofer) is blue, the subwoofer is on. When the status LED is red the subwoofer is in standby mode.

Master Power Switch (not shown above)

Located on the back panel of the subwoofer, the Master Power switch must be set to 'Auto On' for the subwoofer to operate. When set to 'Auto On' the subwoofer will automatically enter a power saving mode when no audio signal is detected. The subwoofer will automatically come out of power saving mode when a signal is detected.

About the Controls 7