Subwoofer Connection - Paradigm Reference OM-577 Mode D'emploi

SUBWOOFER CONNECTION

SAFETY PRECAUTION: Before proceeding with this
section, be sure to read and follow all safety precaution
notices and warnings at the beginning of this manual.
Turn all components OFF before connecting
the subwoofer.
INPUT FACILITIES
This Owners Manual applies to a number of different Paradigm
subwoofers. Connection options vary by subwoofer model. Examine your
subwoofer's rear panel to determine the input(s) that apply to your model,
then choose the one that best suits your needs:
Low-Level Input — 2 RCA Connection Options (Figs. 3a, 3b)
1. Mono Input (Left, Right, or Sub-Out) connects from the RCA (S/E)
Sub/ LFE–Output of your Preamplifier/Processor, A/V Receiver or other
suitable low-level source (Fig. 3a).
2. Stereo Input (Left & Right) connects from the Stereo Preamplifier, Stereo
Receiver or other suitable low-level stereo source (Fig. 3b).
CONTROL FACILITIES
This Owners Manual applies to a number of different Paradigm
subwoofers. Examine your subwoofer's rear panel and place a check mark
in the box beside each facility listed below that applies to your model. Take
the time to read through the descriptions and become familiar with them
before you begin to fine tune your system.
❑
Auto-On/Off
Eliminates the need for a manually operated power switch. Turns the
subwoofer on whenever there is an input signal. If no input signal is sensed
after a period of time the subwoofer will switch off automatically.
❑
Trigger-On/Off
Allows the subwoofer's power on/off to be controlled by components
that have trigger outputs (Preamp/Processor or A/V Receiver, etc.).
❑
Subwoofer Level
Balances the subwoofer's output level with the other speakers in your
system. Once set, to make on-the-fly changes for particular program
material or personal taste, use your Processor or A/V Receiver's
subwoofer level control.
NOTE: Speakers set to "Large" with your processor or A/V receiver will
still be reproducing bass frequencies—be careful not to overdrive them!
We recommend the use of high-quality cables and connectors. (See your
Dealer for more information.)
® Reference Low-Level Input — Balanced XLR (Fig. 4)
Connects from the Balanced XLR Sub/LFE–Output of your Preamplifier/
Processor, A/V Receiver or other suitable low-level source. This input provides
the lowest noise and distortion possible. It is particularly important for long
cable runs where noise and distortion could degrade performance.
❑
® Reference Subwoofer Cut-Off and Bypass Option
Controls the subwoofer's upper-frequency cut-off. This can be set to
match the low-frequency roll-off characteristics of your system's speakers.
For example: If your speakers play to approximately 80 Hz, you can set
the subwoofer cut-off frequency to approximately 80 Hz. If you are using
an external subwoofer cut-off control, setting this to maximum effectively
bypasses the subwoofer's built-in cut-off control.
Bypass option allows you to bypass the subwoofer's built-in cut-off control
to let your preamp/processor's or receiver's internal bass management
system provide the crossover function.
❑
Phase Alignment
Depending on where the subwoofer is placed in your room, there may be
bass frequency cancellation. This can occur because your subwoofer
and front speakers are out-of-phase—they work against each other
through their frequency overlap region. Bass is then reduced and may even
sound disjointed. This control accurately synchronizes your subwoofer
and front speakers through their bass frequency overlap region.
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