Theater Solutions Owner’s Manual
SUB8S
Active Subwoofer
About Subwoofers
Subwoofers extend the bass response of your system beyond the limitation of
most speakers. They are used with, not in place of, your existing left and right
speakers. A subwoofer can dramatically enhance a stereo TV, a stereo system,
or a full fledged home theater.
Features
This active subwoofer features a highly efficient ported enclosure, a 8-inch
reinforced driver and a 250-watts amplifier with a passive low frequency crossover
network. A line level input is provided for fast and easy connection to virtually any
system.
Using the Controls
Power
The subwoofer is off in the “OFF” position, on in the “ON” position and is activated
upon receiving a signal in the “AUTO” position.
Phase
The subwoofer has phase switch 0°and 180°
Gain
The control adjusts the volume of the subwoofer. Once set, the volume control should not require further
adjustment. Begin with the volume control at the minimum position. Slowly increase the volume until you can hear
the subwoofer. A subwoofer playing too loud can give your system a muddy sound, so be sure to balance the subwoofer
carefully with your other speakers.
Output volume is relative and can be different from location to location. Always return to the normal listening location
to evaluate any setting changes.
Frequency
The crossover frequency control determines the highest frequency at which the subwoofer reproduces sounds. It can be
adjusted from 40Hz to 140Hz.
Placement Guidelines
Prior to installing your new subwoofer, please consider the following guidelines. Placing the subwoofer near a wall or in a
corner will greatly increase its bass response. As frequencies reproduced by subwoofers are long and need room to
propagate, a subwoofer placed near the listening position will not sound as full as one placed farther away. Please be
careful about placing anything directly on top of your subwoofer, as the vibrations of the speaker cabinet could cause these
items to fall.
Connecting the subwoofer
The following diagrams show four of the most common types of subwoofer connections.
Hi Level In
These inputs are designed to accept an amplified signal from the speaker outputs of a receiver, power amp or other device
not equipped with line level outputs.
Hi Level Out
The original amplified signal from your source is present at these outputs, for connection to the existing left and right
speakers.
Line In
The RCA-type jack of your Subwoofer is designed to accept a line level signal from a receiver, pre-amp, surround sound
decoder, television or similar device. When using a single line level output from another unit, a Y connector should be used
to send the signal to both the left and right inputs.
Hi Level Connections
Here the signal is already amplified as it leaves the
receiver/amplifier. The speaker terminals of this unit
are connected to the hi level inputs of the Subwoofer.
The left and right speakers receive the original amplified
signal from the Subwoofer hi level outputs.
Line Level Connections
In this example, the pre-amp outputs of a stereo
receiver are connected to the Subwoofer line inputs.
Television Enhancement
Many newer television sets are equipped with variable
Stereo outputs. The signal available at these outputs
varies with the television volume. In this situation,
these variable audio outputs can be connected directly
to the Subwoofer line inputs to enhance the bass response
of the television's built-in speakers.
Dedicated Subwoofer Connections
Many surround sound decoders, home theater
processors and audio/video receivers are equipped
with a dedicated subwoofer line output. In this case,
the signal is already processed and does not need to
return to the system or other speakers. Connect this
line output to the line inputs of the Subwoofer. A Y
connector should be used to feed this single output to
both the left and the right line inputs.
Amplifier Power Output…………..250 Watts(Max) Functions……………………Power(ON, AUTO, OFF)
Frequency Response …………….35Hz - 150 Hz Input……………………Hi Level (Speaker), Line(RCA)
Driver ………………………………8” Reinforced Dimensions……………4 3/4”H x 24 5/8”W x 15 3/4”D
Variable Crossover………………… .40Hz-140Hz
Specifications
Active Subwoofer
Design and specifications are subject to change without notice.
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