EMP Tek E10s (150 Watt) - Manual (Page 7)

IMPORTANT NOTICE REGARDING BASS MANAGEMENT: It is important the signal being
sent to the subwoofer be a non-boosted or “flat” signal. To be sure of this, check the settings on
your receiver or processor to make sure any “bass boost”, “super bass” or “loudness” is set to Off.
In most cases a home theater receiver or processor will determine the crossover frequency through
bass management settings. In this configuration, connect the receiver or processor to the LFE
input. Your subwoofer should now reproduce the bass frequencies the way they were originally
recorded. Use the subwoofer level control and the individual bass management control within the
receiver or processor to adjust the subwoofers’ volume if necessary. Once set, the volume controls
should not need to be altered as the subwoofers’ volume will track with the master volume control
of your receiver or processor.
Subwoofer Amplifier Controls and Setup
5
This section describes the functions and/or use for each of the amplifier controls
located on the back of the subwoofer. Refer to the diagram on the next page.
1. Voltage Selector Switch:
Before connecting the amplifier to any power source make
sure the AC Voltage Selector is set to either 110V or 220V to match the power voltage in
your area.
WARNING! If the voltage setting does not match the AC power supplied,
damage to the Subwoofer Amplifier may result.
2. Volume/Gain Control: The volume/level control should be at the minimum
setting (all the way counter-clockwise) before plugging the subwoofer into an
AC wall socket. Once plugged in, turn the level control up one quarter of a turn
(9 o’clock position) for an initial setting. The level control may be adjusted while
playing to match the subwoofer level with the rest of the system.
IMPORTANT! The volume control should be at the minimum setting (all the
way counter-clockwise) before plugging the subwoofer into an AC wall socket.
3. Crossover Frequency Control: The variable crossover frequency control
allows you to set the low-pass crossover point of the subwoofer anywhere from
40-150 Hz. If using the Line Level input, experiment with setting the crossover
frequency control at highest setting initially. Increasing the crossover frequency
will allow more mid-bass output from the subwoofer. Decreasing the frequency
will allow only deeper bass from the subwoofer.
NOTE: Read the Important Notice regarding bass management above.
4. Auto Signal Tracking: The subwoofer amplifier uses “smart” signal tracking
circuitry. Once the power cord is plugged in and the switch set to auto, the
amplifier automatically turns on when a signal is detected at the preamplifier
and turns off when no signal has been detected for 15 minutes.
5. Phase Control: This control changes the phase of the subwoofer. Changing the phase
will change the way the subwoofer and main speakers interact with each other at
the crossover frequency. Varying the phase position may result in more or less mid
bass depending on the phasing between the main speakers and the subwoofer.
6. Line Inputs: Line level input should only be used if no subwoofer crossover is
being utilized through the receivers’ bass management.