FINE TUNING
Once you have the rest of your speakers positioned in the
room and have set speaker distances and calibrated
speaker levels with your Processor or A/V Receiver, it’s
time for a little fine tuning of the subwoofer(s).
Subwoofer Controls
When setting the subwoofer controls use music and
video soundtracks that you know well. They should
contain selections with extended bass that is continuous
and repetitive. When you are adjusting your subwoofer,
remember: Bass should not be overbearing—the subwoofer
should not draw attention to itself—but sound shouldn’t be
“thin” or difficult to hear. Certain subwoofer placement may
result in bass frequency cancellations—this occurs when
your front speakers and subwoofer are “out-of-phase”, in
other words, they work against each other through the
crossover region. This will result in bass being reduced. If
bass sounds weak or dislocated adjust the phase according
to the instructions that apply to your subwoofer in the setup
procedures that follow.
1. Turn the Subwoofer Level control completely counter-
clockwise to its minimum;
2. Turn the Subwoofer Cut-Off Frequency control clockwise
to its highest frequency (i.e. 150 Hz).
3. Set the Phase Alignment Control to 0°;
4. While you listen to a bass music or video selection in
your primary listening area, have an assistant turn up
the Subwoofer Level control until the subwoofer can
be clearly heard;
5. Have an assistant try the Phase Alignment control until
you hear the most bass. Your subwoofer and front
speakers are now in phase. Do not change phase
alignment again unless you move the subwoofer or the
front speakers to a different location in the room or move
or remove large items of furniture or room furnishings
(i.e. carpet, draperies, etc.)
6. Turn the Subwoofer Level control completely counter-
clockwise to its minimum.
7. Turn the Subwoofer Cut-Off Frequency control completely
counter-clockwise to its lowest frequency
(i.e. 50 Hz);
8. Slowly rotate the Subwoofer Level control until you match
the subwoofer output level with the level of your front
speakers. Bass should be clearly audible, but not
intrusive;
NOTE:
If using an A/V receiver or processor to control
crossover setting, skip the next step and set the subwoofer
cut-ff frequency control to ‘Bypass.’
9. Slowly rotate the Subwoofer Cut-Off Frequency control
until you hear the best subwoofer/main speaker blend. If
the sound is too ‘thin,’ you have not set the frequency
high enough; if the sound becomes ‘boomy’ you have
set the frequency too high. Adjust until you find the most
natural balance.
SETTING SUBWOOFER CONTROLS
Set tone or equalizer controls on your receiver or preamplifier to flat (or 0°) and switch any loudness controls off.
9
When the subwoofer is used with high-sensitivity speakers
more volume gain may be required. You can obtain 6 dB
more gain by using a “Y” cable and plugging into both input
jacks
(not shown)
.
USING YOUR SUBWOOFER WITH HIGH-SENSITIVITY SPEAKERS
NOTE:
When using receivers with Automatic Level and Crossover setting systems such as the Anthem Room Correction,
refer to your receiver’s Owners Manual for correct setup procedure, otherwise follow the instructions below.
CONTROL FACILITIES
CONNECTION (Fig. 3)
The USB port allows for:
• Connection of optional Paradigm Perfect Bass Kit (PBK
™
);
• Possible future upgrades to the software installed in
your subwoofer.
Even when the world’s finest speakers are perfectly
positioned, the room can still have a dramatic impact on
performance. Room dimensions, dead spots, archways,
furniture placement and countless other factors can turn
a room into an additional instrument, playing alongside
musicians or movie scores with unwanted contributions
of coloration and resonance.
Although the Control Facilities included on your Paradigm
®
subwoofer allow you to fine tune for optimal bass
performance in your room,
Paradigm’s Perfect Bass Kit
(PBK
™
)
(sold separately, see Dealer)
allows you to correct
for the effects of your room’s boundaries.
THE USB PORT
PARADIGM PERFECT BASS KIT (PBK
™
)
8
Line-Level Input From Sub/LFE Output – For use with a
receiver, processor or subwoofer control unit with a
Sub-Out/ LFE-Out jack.
Using an RCA-to-RCA interconnect cable connect the
subwoofer as shown.
(See Dealer if you require additional information.)
Auto-On/Off/Standby
Automatic sensing feature inherent within the amplifier’s
design. No action on the user’s part is required.
Subwoofer Level
Balances the subwoofer output level to your speakers.
For instructions on setting the Subwoofer Controls once your
subwoofer has been connected refer to the section
on “Fine Tuning”.
Subwoofer Cut-Off Frequency
Controls the subwoofer’s upper-frequency cut-off. This can be
set to match the low-frequency roll-off characteristics of your
front speakers. For example, if your front speakers play to
approximately 80 Hz, you can set the subwoofer cut-off
frequency to approximately 80 Hz.
Subwoofer/Satellite Phase Alignment
The sound from your subwoofer may arrive at the listening
position out of phase with the front speakers. This control
synchronizes the subwoofer and the front speakers through
their frequency overlap region.
