Mordaunt-Short MS909W manual Variable Notch Filter, Line Level Input, Phase, Frequency, Volume

Subwoofer Controls

3. Variable Notch Filter

For details on how to operate the Variable Notch Filter, see Page 10.

4. Line Level Input

If your amplification system has a dedicated subwoofer it should be connected to the line level input. If you have a mono connection from your amplifier you may use either connection. The output sockets can be used if an additional subwoofer is to be added to your system.

Note: To prevent damage to the amplifier, only connect using high level inputs OR line level inputs.

DO NOT USE BOTH METHODS OF CONNECTION AT THE SAME TIME

6. Phase

This allows you to match the time integration of your subwoofer to the other speakers in your system. This is especially useful when the subwoofer and any other speakers in your system are positioned at different distances from the listener.

7. Frequency

This is used to adjust the point at which the crossover will separate the low frequencies being used by the subwoofer from the higher frequencies played by the rest of the system. Raising the Low Frequency Cut-Off will increase the frequency range that the MS909W will reproduce. Lowering the Low Frequency Cut-Off will limit the range of frequencies reproduced.

5. Volume

This control allows you to adjust the volume of low frequency output from your subwoofer amplifier to obtain the best sound/balance within your surroundings.

8. AC Power Socket

Use this socket to connect to an appropriate mains socket via the AC Power Cable supplied.

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