Operation Manual

5. Volume

This control allows you to adjust the volume of the low frequency output

of your sub woofer amplifier for best sound-balance. This adjustment is

defeated in THX mode as THX approved surround-sound processors

allow subwoofer level adjustments to be done by the processor.

6. Notch Filter

This is a single band Parametric EQ that is a powerful tool to help your

loudspeaker system sound it’s best. The low frequency response that

you hear is actually a function of the room itself. The Notch Filter can

help your MS502s adapt to the listening environment. Often, the in-room

response is dominated by a single resonant peak in the bass region. The

MS502 system can overcome this problem by tuning the in-built notch

filter to the same frequency as the problem resonance. The notch then

attenuates this frequency only and gives a more even, flatter bass re-

sponse. Two levels of cut –6dB (shallow) and –12dB (deep) are available.

See “EQ Adjustment” section for full details.

7. Power

Switches the subwoofer amplifier power on or off.

8. Auto/On

If switched to auto, the amp will remain in standby mode until a signal is

detected at the input. The unit will then automatically switch itself on. The

MS502 subwoofer will then automatically go back into standby mode if an

input signal is not present at the input for approximately 5 minutes. When

the switch is in the ‘ON’ position the unit remains permanently on as long

as the main power switch is on. The LED positioned here indicates whether

the unit is on or in standby mode (red for standby and green when on).

This LED will also light red when a fault is detected.

MS502 INTEGRATED SUBWOOFER AMPLIFIER

fig. 7

fig. 8

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